{"title":"G-Sport","description":null,"products":[{"product_id":"gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp","title":"G-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHigh-Flow Performance Meets EPA Compliance\u003c\/h2\u003e\u003cp\u003eThe GESI G-Sport GEN1 Catalytic Converter is engineered for enthusiasts who demand high-flow performance without compromising emissions standards. Featuring a 300 CPSI (cells per square inch) substrate, this unit is specifically designed to minimize backpressure while ensuring your vehicle remains EPA compliant. Rated for engines producing between 350 and 500 horsepower, it is the perfect solution for street-legal performance builds.\u003c\/p\u003e\u003ch3\u003eKey Technical Specifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet\/Outlet:\u003c\/strong\u003e 3-inch diameter for optimal exhaust flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e GEN1 300 CPSI EPA compliant core.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 4-inch x 4-inch body design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower Rating:\u003c\/strong\u003e Optimized for 350-500HP applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Built to withstand high-heat environments and aggressive driving.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis universal catalytic converter is ideal for custom exhaust fabricators looking for a reliable, high-performance solution that won't trigger check engine lights. Its robust construction ensures longevity, even under heavy load conditions. Whether you are building a track-day vehicle that needs to stay street-legal or simply upgrading your daily driver's exhaust system for better efficiency, this GESI unit delivers the perfect balance of power and compliance. Experience the difference in exhaust flow and engine response today. Find all your premium automotive exhaust components at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eGESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter — 3in Inlet\/Outlet 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"G-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter \\u2014 Universal EPA Compliant\",\"description\":\"Upgrade your exhaust with the GESI G-Sport GEN1 300 CPSI catalytic converter. EPA compliant, 350-500HP rated. Shop high-flow performance parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"50032\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\",\"offers\":{\"@type\":\"Offer\",\"price\":\"626.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\",\"sku\":\"GSP50032\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Exhaust\",\"item\":\"https:\/\/ggcracing.com\/collections\/exhaust\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"G-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter \\u2014 Universal EPA Compliant\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the G-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter \\u2014 Universal EPA  fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the G-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter \\u2014 Universal EPA ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. No welding required.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449455386708,"sku":"GSP50032","price":626.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/532237b24a454a6b9c882219ee5b3baa_70b10f66-9b91-4f84-8e65-1f712ff0052f.jpg?v=1721603162"},{"product_id":"gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp","title":"G-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eAdvanced GEN2 High Output Substrate\u003c\/h2\u003e\u003cp\u003eThe GESI G-Sport GEN2 400 CPSI substrate is the gold standard for custom exhaust builders requiring EPA-compliant emission control without sacrificing engine performance. This high-output core is designed to handle the thermal demands of modern performance engines, providing exceptional flow characteristics for builds ranging from 350 to 500 horsepower.\u003c\/p\u003e\u003ch3\u003eTechnical Features:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneration:\u003c\/strong\u003e GEN2 advanced substrate technology.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDensity:\u003c\/strong\u003e 400 CPSI for superior emission scrubbing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 4-inch x 4-inch compact profile.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Universal fitment for custom fabrication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Rated for 350-500HP high-output engines.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBy utilizing the GEN2 substrate, this component offers improved durability and resistance to thermal shock compared to standard converters. It is an essential component for those building high-performance exhaust systems that must meet strict environmental regulations. The 400 CPSI density ensures that your vehicle maintains clean emissions while allowing the engine to breathe freely, resulting in improved throttle response and overall power delivery. This substrate is designed for professional installation and custom welding into your existing exhaust piping. Its compact 4x4 dimensions make it versatile for tight chassis clearances where space is at a premium. Trust the engineering behind GESI for your next high-performance project. Explore the full range of exhaust solutions available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eGESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter — 3in Inlet\/Outlet 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"G-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate \\u2014 Universal\",\"description\":\"Enhance your custom exhaust with the GESI GEN2 400 CPSI high output substrate. EPA compliant, 350-500HP capacity. Buy premium performance parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"50200\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\",\"offers\":{\"@type\":\"Offer\",\"price\":\"600.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\",\"sku\":\"GSP50200\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Exhaust\",\"item\":\"https:\/\/ggcracing.com\/collections\/exhaust\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"G-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate \\u2014 Universal\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the G-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate \\u2014 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the G-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate \\u2014?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. No welding required.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449455648852,"sku":"GSP50200","price":600.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/b2cb42d17711cf0272c6d4d0edd8ff0a.png?v=1721603167"},{"product_id":"gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only","title":"G-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Universal","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProfessional Grade 6-Pack Substrate Solution\u003c\/h2\u003e\u003cp\u003eFor professional exhaust shops and high-volume performance builders, the GESI G-Sport 6PK GEN2 400 CPSI catalytic converter substrate bundle offers unmatched value and quality. These substrates are engineered to provide the highest level of emission compliance for high-output engines, ensuring that your custom builds meet EPA standards while maintaining peak performance.\u003c\/p\u003e\u003ch3\u003eProduct Specifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 6-Pack bundle for professional builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnology:\u003c\/strong\u003e GEN2 High Output substrate architecture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCPSI:\u003c\/strong\u003e 400 Cells Per Square Inch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 4-inch x 4.5-inch compact sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e EPA compliant design.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe GEN2 series from GESI is renowned for its durability and ability to withstand extreme exhaust gas temperatures. By choosing the 400 CPSI variant, you are opting for a superior balance between flow and filtration. These substrates are perfect for custom headers, mid-pipes, or full exhaust system fabrication. The 4x4.5-inch sizing provides a robust surface area for effective catalytic reaction, even in high-horsepower applications. Whether you are working on a fleet of performance vehicles or a single high-end custom build, this 6-pack ensures you have the high-quality components necessary to get the job done right. The reliability of GESI products means fewer warranty claims and happier customers. Upgrade your shop's inventory with the industry-leading GESI G-Sport series. Discover more professional-grade automotive components at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eGESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter — 3in Inlet\/Outlet 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"G-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate \\u2014 Universal\",\"description\":\"Get the 6-pack of GESI GEN2 400 CPSI catalytic converter substrates. High output, EPA compliant, 4x4.5 inch. Shop professional exhaust parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"650200\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2730.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\",\"sku\":\"GSP650200\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Exhaust\",\"item\":\"https:\/\/ggcracing.com\/collections\/exhaust\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"G-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate \\u2014 Universal\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the G-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substra fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the G-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substra?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. No welding required.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449456861268,"sku":"GSP650200","price":2730.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/9f8ffbeb8979d023ff42d6712628acc7.jpg?v=1721603182"},{"product_id":"gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly","title":"G-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly — Universal","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eComplete High-Output Catalytic Converter Assemblies\u003c\/h2\u003e\u003cp\u003eThe GESI G-Sport 6PK GEN2 400 CPSI Catalytic Converter Assembly is the ultimate choice for performance exhaust fabricators. This bundle includes six complete, ready-to-weld assemblies featuring 3-inch inlet and outlet connections, making them the perfect drop-in solution for high-performance exhaust systems that require EPA compliance.\u003c\/p\u003e\u003ch3\u003eAssembly Highlights:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e 6-Pack of complete converter assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet\/Outlet:\u003c\/strong\u003e 3-inch diameter for maximum flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore:\u003c\/strong\u003e GEN2 400 CPSI High Output substrate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e EPA compliant for street legality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Durable housing designed for high-heat performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese assemblies are built to handle the rigorous demands of modern turbocharged and naturally aspirated performance engines. The GEN2 substrate technology ensures that you don't have to sacrifice power for emissions compliance. With a 400 CPSI density, these converters provide excellent filtration while maintaining the exhaust velocity required for high-horsepower builds. The 3-inch inlet\/outlet configuration is standard for most performance exhaust systems, allowing for easy integration into existing piping. By purchasing the 6-pack, shops can streamline their fabrication process, ensuring consistency and quality across all customer builds. GESI converters are widely regarded as the most reliable high-flow options on the market, minimizing the risk of check engine lights and performance degradation. Elevate your exhaust fabrication standards with the proven performance of GESI. Find these and other premium exhaust components at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eGESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter — 3in Inlet\/Outlet 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"G-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly \\u2014 Universal\",\"description\":\"Bulk 6-pack of GESI GEN2 400 CPSI 3in catalytic converters. High output, EPA compliant, perfect for custom exhaust builds. Shop now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"650230\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2847.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\",\"sku\":\"GSP650230\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Exhaust\",\"item\":\"https:\/\/ggcracing.com\/collections\/exhaust\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"G-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly \\u2014 Universal\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the G-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter  fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the G-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. No welding required.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449457254484,"sku":"GSP650230","price":3310.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/bc3bdfae9946f5032495b4ff18046901_fe1a272d-92ac-4076-8fe7-f6baf3614369.jpg?v=1721603189"},{"product_id":"gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp","title":"G-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHigh-Horsepower EPA Compliant Exhaust\u003c\/h2\u003e\u003cp\u003eDesigned for serious performance builds, the GESI G-Sport GEN1 300 CPSI Catalytic Converter is rated to handle between 500 and 850 horsepower. This unit is specifically engineered for high-output applications where exhaust flow is critical to maintaining power, yet EPA compliance remains a requirement for street legality.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower Rating:\u003c\/strong\u003e 500-850HP capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e GEN1 300 CPSI high-flow core.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 4.5-inch x 4-inch body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e EPA compliant for emission standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Engineered for minimal backpressure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe GEN1 series provides a reliable and effective way to manage emissions on high-boost or high-displacement engines. Its 300 CPSI substrate is optimized to provide the necessary catalytic reaction without restricting the massive volume of exhaust gas produced by high-horsepower setups. This converter is a favorite among tuners and builders who need to balance extreme power with environmental responsibility. The durable housing is built to withstand the intense heat associated with high-output engines, ensuring long-term reliability even under track conditions. Whether you are running a twin-turbo setup or a high-compression naturally aspirated engine, this GESI converter offers the flow and filtration you need. Its 4.5x4-inch design allows for versatile placement in custom exhaust systems. Don't settle for restrictive converters that choke your engine's potential. Choose the industry-leading GESI G-Sport series for your next build. Discover more high-performance exhaust parts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eGESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter — 3in Inlet\/Outlet 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"G-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter \\u2014 500-850HP\",\"description\":\"High-performance GESI GEN1 300 CPSI catalytic converter for 500-850HP engines. EPA compliant and durable. Get yours today at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"85002\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\",\"offers\":{\"@type\":\"Offer\",\"price\":\"710.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\",\"sku\":\"GSP85002\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Exhaust\",\"item\":\"https:\/\/ggcracing.com\/collections\/exhaust\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"G-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter \\u2014 500-850HP\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the G-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter \\u2014 500-850 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the G-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter \\u2014 500-850?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. No welding required.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449458040916,"sku":"GSP85002","price":710.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/6021dfc7116510c4c068870106cd36e7_81188c4e-eef0-417f-8066-7855d3f930f8.jpg?v=1721603200"},{"product_id":"gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4-5in-x-4in-catalytic-converter-500-850hp","title":"GESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter — 3in Inlet\/Outlet 500-850HP","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/stCsz6b78Hs\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHigh-Flow Performance Meets EPA Compliance\u003c\/h2\u003e\u003cp\u003eThe GESI G-Sport GEN1 300 CPSI Catalytic Converter is engineered for enthusiasts who demand maximum exhaust flow without compromising environmental standards. Designed to support high-horsepower builds ranging from 500 to 850HP, this unit utilizes advanced substrate technology to minimize backpressure while ensuring your vehicle remains EPA compliant. Whether you are building a street-legal track car or a high-performance daily driver, the GESI GEN1 provides the durability and flow characteristics required for serious power.\u003c\/p\u003e\u003ch3\u003eKey Technical Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI Substrate:\u003c\/strong\u003e Optimized for high-flow efficiency and superior emission reduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Fitment:\u003c\/strong\u003e Features 3-inch inlet and outlet diameters for seamless integration into custom exhaust systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Construction:\u003c\/strong\u003e Built to withstand the intense thermal demands of high-output engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA Compliant:\u003c\/strong\u003e Engineered to meet strict emission standards while maintaining peak performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Rating:\u003c\/strong\u003e Rated to support engines producing between 500 and 850 horsepower.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis catalytic converter is the ideal solution for those looking to eliminate the restrictive nature of factory converters without triggering check engine lights or failing emission inspections. Its compact 4.5-inch by 4-inch design allows for versatile placement in tight chassis configurations. Experience the perfect balance of power and responsibility with premium exhaust components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"GESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter \\u2014 3in Inlet\/Outlet 500-850HP\",\"description\":\"Upgrade your exhaust with the GESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter. Supports 500-850HP. Shop high-flow performance parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"85032\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4-5in-x-4in-catalytic-converter-500-850hp\",\"offers\":{\"@type\":\"Offer\",\"price\":\"733.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4-5in-x-4in-catalytic-converter-500-850hp\",\"sku\":\"GSP85032\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Exhaust\",\"item\":\"https:\/\/ggcracing.com\/collections\/exhaust\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"GESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter \\u2014 3in Inlet\/Outlet 500-850HP\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4-5in-x-4in-catalytic-converter-500-850hp\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the GESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter \\u2014 3in Inlet\/Outlet  fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the GESI G-Sport GEN1 300 CPSI EPA Compliant Catalytic Converter \\u2014 3in Inlet\/Outlet ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. No welding required.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449458270292,"sku":"GSP85032","price":733.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/6021dfc7116510c4c068870106cd36e7_2f404cac-6338-4e6f-b6de-b9e265d1cda0.jpg?v=1721603202"},{"product_id":"gesi-g-sport-400-cpsi-gen-2-epa-compliant-4-5in-x-4in-high-output-substrate-only-500-850hp","title":"GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only — 4.5in x 4in 500-850HP","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/79C97GzsH_c\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eAdvanced GEN2 Substrate Technology\u003c\/h2\u003e\u003cp\u003eFor custom fabricators and performance builders, the GESI G-Sport GEN2 400 CPSI Substrate offers the ultimate foundation for a high-performance catalytic converter. This substrate-only unit is specifically designed for those who need to integrate a high-flow, EPA-compliant core into a custom-built exhaust housing. With a 400 CPSI count, it provides excellent conversion efficiency while maintaining the high-flow characteristics necessary for engines pushing between 500 and 850 horsepower.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGEN2 Technology:\u003c\/strong\u003e The latest evolution in GESI substrate design for improved longevity and flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400 CPSI Density:\u003c\/strong\u003e Balances emission compliance with maximum exhaust gas velocity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Dimensions:\u003c\/strong\u003e Measures 4.5 inches by 4 inches, perfect for custom fabrication projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-HP Capability:\u003c\/strong\u003e Engineered to handle the thermal stress of high-output forced induction systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA Standards:\u003c\/strong\u003e Meets rigorous EPA requirements for street-legal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis substrate is the core component of the GESI G-Sport line, renowned for its ability to withstand extreme exhaust temperatures and vibration. By choosing the substrate-only option, you gain the flexibility to design your own inlet and outlet geometry to fit unique vehicle layouts. Whether you are fabricating a custom downpipe or a mid-pipe assembly, this component ensures your build remains compliant and efficient. Elevate your exhaust system engineering with professional-grade components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only \\u2014 4.5in x 4in 500-850HP\",\"description\":\"Get the GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate for custom exhaust builds. Supports 500-850HP. Order your high-performance substrate at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"85200\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4-5in-x-4in-high-output-substrate-only-500-850hp\",\"offers\":{\"@type\":\"Offer\",\"price\":\"710.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4-5in-x-4in-high-output-substrate-only-500-850hp\",\"sku\":\"GSP85200\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Exhaust\",\"item\":\"https:\/\/ggcracing.com\/collections\/exhaust\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only \\u2014 4.5in x 4in 500-850HP\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4-5in-x-4in-high-output-substrate-only-500-850hp\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only \\u2014 4.5in x 4in 500-850HP fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only \\u2014 4.5in x 4in 500-850HP?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. No welding required.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449458499668,"sku":"GSP85200","price":710.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/9f3678709c62eb2206d647ebfd1bb821.png?v=1721603205"},{"product_id":"gesi-g-sport-400-cpsi-gen-2-epa-compliant-3-0in-inlet-out-catalytic-converter-4-5in-x-4in-500-850hp","title":"GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter — 3in Inlet\/Outlet 500-850HP","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/oZIjYLPeRT4\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eSuperior Flow with GEN2 Efficiency\u003c\/h2\u003e\u003cp\u003eThe GESI G-Sport GEN2 400 CPSI Catalytic Converter represents the pinnacle of street-legal performance exhaust technology. Featuring a 3-inch inlet and outlet, this assembly is designed for enthusiasts who want to maintain high exhaust gas velocity while ensuring their vehicle meets EPA emission standards. Built to handle up to 850 horsepower, this converter is the ideal upgrade for modified vehicles, including those with turbochargers or superchargers.\u003c\/p\u003e\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGEN2 Core:\u003c\/strong\u003e Enhanced substrate durability for long-term reliability under high heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400 CPSI Design:\u003c\/strong\u003e Provides a superior balance between emission filtration and exhaust flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Inch Cones:\u003c\/strong\u003e Includes precision-engineered 3-inch inlet and outlet cones for easy installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Output Ready:\u003c\/strong\u003e Rated for 500-850HP, making it perfect for aggressive street builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA Compliant:\u003c\/strong\u003e Designed to keep your vehicle compliant without sacrificing power.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe GEN2 series is built to handle the rigors of modern high-performance engines. Its 4.5-inch by 4-inch body is compact enough for most under-car applications, providing a clean, professional install. By reducing backpressure, you allow your engine to breathe more freely, resulting in improved throttle response and potential power gains throughout the RPM range. Trust in the quality of GESI products to keep your performance vehicle running clean and strong. Find your next exhaust upgrade at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter \\u2014 3in Inlet\/Outlet 500-850HP\",\"description\":\"Upgrade to the GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter. 3-inch inlet\/outlet for 500-850HP. Buy now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"85230\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-3-0in-inlet-out-catalytic-converter-4-5in-x-4in-500-850hp\",\"offers\":{\"@type\":\"Offer\",\"price\":\"733.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-3-0in-inlet-out-catalytic-converter-4-5in-x-4in-500-850hp\",\"sku\":\"GSP85230\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Exhaust\",\"item\":\"https:\/\/ggcracing.com\/collections\/exhaust\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter \\u2014 3in Inlet\/Outlet 500-850HP\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-3-0in-inlet-out-catalytic-converter-4-5in-x-4in-500-850hp\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter \\u2014 3in Inlet\/Outlet  fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter \\u2014 3in Inlet\/Outlet ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. No welding required.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449458925652,"sku":"GSP85230","price":733.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/5e473c82a799d30552fb30593d1f6017.png?v=1721603210"},{"product_id":"gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-inlet-out-catalytic-converter-4-5in-x-4in-500-850hp","title":"GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter — 4in Inlet\/Outlet 500-850HP","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/Q-DgovvK6pg\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eMaximum Flow for High-Horsepower Builds\u003c\/h2\u003e\u003cp\u003eWhen your engine build requires a 4-inch exhaust system to move massive volumes of air, the GESI G-Sport GEN2 400 CPSI Catalytic Converter is the essential component for maintaining emission compliance. Designed for high-output engines producing between 500 and 850 horsepower, this converter features 4-inch inlet and outlet cones to match your large-diameter exhaust piping. It is the perfect solution for high-boost turbo applications where backpressure must be kept to an absolute minimum.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Inch Diameter:\u003c\/strong\u003e Specifically configured for 4-inch exhaust systems to ensure zero flow restriction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGEN2 Substrate:\u003c\/strong\u003e Advanced material composition for extreme heat resistance and durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400 CPSI Efficiency:\u003c\/strong\u003e EPA-compliant filtration that doesn't choke your engine's power potential.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-HP Rating:\u003c\/strong\u003e Engineered for the demanding needs of 500-850HP power levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Body:\u003c\/strong\u003e 4.5-inch by 4-inch housing allows for flexible mounting options.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe GESI G-Sport GEN2 series is widely regarded as the gold standard for performance catalytic converters. By utilizing this 4-inch assembly, you ensure that your high-performance vehicle remains compliant with environmental regulations while still delivering the raw power you expect on the track or the street. The robust construction ensures that the substrate remains intact even under the most demanding driving conditions. Upgrade your exhaust system with confidence using the industry-leading technology found at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter \\u2014 4in Inlet\/Outlet 500-850HP\",\"description\":\"Boost performance with the GESI G-Sport GEN2 400 CPSI Catalytic Converter. 4-inch inlet\/outlet for 500-850HP. Shop GGCRACING for high-flow exhaust parts.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"85240\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-inlet-out-catalytic-converter-4-5in-x-4in-500-850hp\",\"offers\":{\"@type\":\"Offer\",\"price\":\"749.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-inlet-out-catalytic-converter-4-5in-x-4in-500-850hp\",\"sku\":\"GSP85240\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Exhaust\",\"item\":\"https:\/\/ggcracing.com\/collections\/exhaust\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter \\u2014 4in Inlet\/Outlet 500-850HP\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-inlet-out-catalytic-converter-4-5in-x-4in-500-850hp\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter \\u2014 4in Inlet\/Outlet  fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the GESI G-Sport GEN2 400 CPSI EPA Compliant Catalytic Converter \\u2014 4in Inlet\/Outlet ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. No welding required.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449459155028,"sku":"GSP85240","price":749.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/1d847265dbc36ce610cc3076699f5308.png?v=1721603213"},{"product_id":"gesi-g-sport-400-cpsi-gen2-epa-compliant-5in-x-4in-substrate-only-up-to-1-000hp","title":"GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only — 5in x 4in Up to 1,000HP","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/79C97GzsH_c\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUltimate Substrate for Extreme Power\u003c\/h2\u003e\u003cp\u003eFor the most demanding builds, the GESI G-Sport GEN2 400 CPSI Substrate is the ultimate choice. Rated for engines producing up to 1,000 horsepower, this substrate-only unit provides the necessary emission control for high-output track and street vehicles. With a larger 5-inch by 4-inch footprint, it offers increased surface area for filtration, ensuring that even at extreme power levels, your exhaust remains compliant with EPA standards.\u003c\/p\u003e\u003ch3\u003eWhy Choose the GEN2 1,000HP Substrate?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme Capacity:\u003c\/strong\u003e Engineered to support up to 1,000HP, making it ideal for big-turbo and high-boost builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGEN2 Durability:\u003c\/strong\u003e Advanced substrate matrix designed to resist thermal shock and vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400 CPSI Density:\u003c\/strong\u003e Optimal balance of emission cleaning and exhaust gas flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomizable:\u003c\/strong\u003e Substrate-only design allows fabricators to create custom housings for unique exhaust setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA Compliant:\u003c\/strong\u003e Maintains legal compliance even on highly modified performance engines.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis substrate is built for those who refuse to compromise. Whether you are building a dedicated drag car that needs to stay street-legal or a high-end street machine, this component provides the reliability and performance you demand. The 5-inch by 4-inch size is specifically chosen to handle the massive exhaust volume produced by 1,000HP engines without creating a bottleneck. Ensure your high-performance build is both powerful and responsible with premium components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only \\u2014 5in x 4in Up to 1,000HP\",\"description\":\"Handle up to 1,000HP with the GESI G-Sport GEN2 400 CPSI Substrate. EPA compliant and built for extreme performance. Get yours today at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"85500\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen2-epa-compliant-5in-x-4in-substrate-only-up-to-1-000hp\",\"offers\":{\"@type\":\"Offer\",\"price\":\"835.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen2-epa-compliant-5in-x-4in-substrate-only-up-to-1-000hp\",\"sku\":\"GSP85500\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Exhaust\",\"item\":\"https:\/\/ggcracing.com\/collections\/exhaust\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only \\u2014 5in x 4in Up to 1,000HP\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen2-epa-compliant-5in-x-4in-substrate-only-up-to-1-000hp\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only \\u2014 5in x 4in Up to 1,000H fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only \\u2014 5in x 4in Up to 1,000H?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. No welding required.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449459449940,"sku":"GSP85500","price":835.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/b2cb42d17711cf0272c6d4d0edd8ff0a_04027adb-9e43-4897-b95f-70feb822edb4.png?v=1721603217"},{"product_id":"gesi-g-sport-3-86in-od-2-50in-id-inlet-outlet-transition-cone-only","title":"GESI G-Sport 3.86in OD to 2.50in ID Exhaust Transition Cone — Universal Fabrication Component","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProfessional Exhaust Fabrication with GESI G-Sport\u003c\/h2\u003e\u003cp\u003eAchieve seamless exhaust transitions with the GESI G-Sport 3.86in OD to 2.50in ID transition cone. Engineered for fabricators who demand precision, this component is essential for building high-performance exhaust systems, custom headers, or catalytic converter setups. Crafted from durable materials, this cone ensures optimal exhaust gas flow and structural integrity in demanding racing environments.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOuter Diameter: 3.86 inches\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 2.50 inches\u003c\/li\u003e\n\u003cli\u003eMaterial: High-grade steel for welding\u003c\/li\u003e\n\u003cli\u003eApplication: Universal exhaust fabrication\u003c\/li\u003e\n\u003cli\u003ePrecision-engineered for smooth transitions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a custom turbo-back exhaust or repairing a high-performance manifold, this transition cone provides the perfect fitment for 2.5-inch piping. Its robust construction allows for easy welding and long-lasting durability under extreme heat cycles. By smoothing the transition between different pipe diameters, you reduce turbulence and improve overall exhaust scavenging efficiency. This is a must-have for any professional shop or DIY enthusiast working on custom exhaust projects. Find all your high-performance fabrication parts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"GESI G-Sport 3.86in OD to 2.50in ID Exhaust Transition Cone \\u2014 Universal Fabrication Component\",\"description\":\"Upgrade your exhaust system with the GESI G-Sport 3.86in OD to 2.50in ID transition cone. High-quality steel for custom fabrication. Shop at GGCRACING today.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"94025\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-3-86in-od-2-50in-id-inlet-outlet-transition-cone-only\",\"offers\":{\"@type\":\"Offer\",\"price\":\"29.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-3-86in-od-2-50in-id-inlet-outlet-transition-cone-only\",\"sku\":\"GSP94025\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"GESI G-Sport 3.86in OD to 2.50in ID Exhaust Transition Cone \\u2014 Universal Fabrication Component\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-3-86in-od-2-50in-id-inlet-outlet-transition-cone-only\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the GESI G-Sport 3.86in OD to 2.50in ID Exhaust Transition Cone \\u2014 Universal Fabricat fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the GESI G-Sport 3.86in OD to 2.50in ID Exhaust Transition Cone \\u2014 Universal Fabricat?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449460105300,"sku":"GSP94025","price":29.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/20e4da36830e6819bbb5dfbf95dcac1e.png?v=1721603227"},{"product_id":"gesi-g-sport-3-86in-od-3-00in-id-inlet-outlet-transition-cone-only","title":"GESI G-Sport 3.86in OD to 3.00in ID Exhaust Transition Cone — Universal Fabrication Component","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePrecision Exhaust Flow with GESI G-Sport\u003c\/h2\u003e\u003cp\u003eThe GESI G-Sport 3.86in OD to 3.00in ID transition cone is the ideal solution for fabricators looking to bridge the gap between different exhaust pipe diameters. Designed for high-performance applications, this component allows for a smooth, aerodynamic transition that minimizes backpressure and maximizes exhaust velocity. Whether you are upgrading your downpipe or creating a custom exhaust system, this steel cone provides the reliability and precision required for professional results.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOuter Diameter: 3.86 inches\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 3.00 inches\u003c\/li\u003e\n\u003cli\u003eMaterial: Durable steel construction\u003c\/li\u003e\n\u003cli\u003eCompatibility: Universal exhaust fabrication\u003c\/li\u003e\n\u003cli\u003eOptimized for high-heat environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis transition cone is built to withstand the rigors of track use and high-boost applications. Its robust design ensures that your welds remain secure and the airflow remains laminar, preventing the turbulence often caused by abrupt diameter changes. Perfect for fabricators working with 3-inch piping systems, this GESI component is a staple for high-performance exhaust builds. Enhance your vehicle's performance and sound with high-quality fabrication parts from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"GESI G-Sport 3.86in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabrication Component\",\"description\":\"Optimize your custom exhaust build with the GESI G-Sport 3.86in OD to 3.00in ID transition cone. Durable steel for professional fabrication. Buy at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"94030\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-3-86in-od-3-00in-id-inlet-outlet-transition-cone-only\",\"offers\":{\"@type\":\"Offer\",\"price\":\"29.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-3-86in-od-3-00in-id-inlet-outlet-transition-cone-only\",\"sku\":\"GSP94030\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"GESI G-Sport 3.86in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabrication Component\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-3-86in-od-3-00in-id-inlet-outlet-transition-cone-only\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the GESI G-Sport 3.86in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabricat fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the GESI G-Sport 3.86in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabricat?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449460498516,"sku":"GSP94030","price":29.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/20e4da36830e6819bbb5dfbf95dcac1e_63972182-4413-43de-bcee-fcc7e5b52a8f.png?v=1721603230"},{"product_id":"gesi-g-sport-4-36in-od-3-00in-id-inlet-outlet-transition-cone-only","title":"GESI G-Sport 4.36in OD to 3.00in ID Exhaust Transition Cone — Universal Fabrication Component","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance Exhaust Fabrication\u003c\/h2\u003e\u003cp\u003eUpgrade your exhaust system with the GESI G-Sport 4.36in OD to 3.00in ID transition cone. This precision-engineered component is designed for fabricators who need to connect larger diameter exhaust sections to 3-inch piping. Built for durability and performance, this cone ensures that your exhaust gases flow smoothly, reducing restriction and improving overall engine efficiency in high-performance racing vehicles.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOuter Diameter: 4.36 inches\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 3.00 inches\u003c\/li\u003e\n\u003cli\u003eMaterial: High-quality weldable steel\u003c\/li\u003e\n\u003cli\u003eApplication: Custom exhaust systems\u003c\/li\u003e\n\u003cli\u003eDesigned for maximum flow efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen building a custom exhaust, the transition between components is critical. This GESI transition cone provides a seamless path for exhaust gases, minimizing turbulence and ensuring consistent performance under load. Its heavy-duty steel construction is perfect for welding, offering a secure and long-lasting connection that can handle the extreme temperatures of high-output engines. Whether you are a professional fabricator or a dedicated enthusiast, this component is essential for achieving a clean, efficient exhaust layout. Discover the best in automotive fabrication hardware at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"GESI G-Sport 4.36in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabrication Component\",\"description\":\"Enhance your custom exhaust build with the GESI G-Sport 4.36in OD to 3.00in ID transition cone. High-strength steel for professional fabrication at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"94530\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-4-36in-od-3-00in-id-inlet-outlet-transition-cone-only\",\"offers\":{\"@type\":\"Offer\",\"price\":\"49.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-4-36in-od-3-00in-id-inlet-outlet-transition-cone-only\",\"sku\":\"GSP94530\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"GESI G-Sport 4.36in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabrication Component\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-4-36in-od-3-00in-id-inlet-outlet-transition-cone-only\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the GESI G-Sport 4.36in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabricat fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the GESI G-Sport 4.36in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabricat?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449460727892,"sku":"GSP94530","price":49.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/20e4da36830e6819bbb5dfbf95dcac1e_66a17fae-7071-41fc-938e-d8ada6189114.png?v=1721603233"},{"product_id":"gesi-g-sport-4-87in-od-3-00in-id-inlet-outlet-transition-cone-only","title":"GESI G-Sport 4.87in OD to 3.00in ID Exhaust Transition Cone — Universal Fabrication Component","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout G-Sport\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eG-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProfessional-Grade Exhaust Transitions\u003c\/h2\u003e\u003cp\u003eThe GESI G-Sport 4.87in OD to 3.00in ID transition cone is engineered for high-performance exhaust fabrication. This component is specifically designed to allow for a smooth transition from a 4.87-inch diameter to a 3-inch diameter, making it an essential piece for custom exhaust systems, turbo setups, and high-flow catalytic converter installations. Its robust steel construction ensures it can handle the intense heat and pressure associated with high-performance racing engines.\u003c\/p\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOuter Diameter: 4.87 inches\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 3.00 inches\u003c\/li\u003e\n\u003cli\u003eMaterial: Weldable steel\u003c\/li\u003e\n\u003cli\u003eCompatibility: Universal exhaust fabrication\u003c\/li\u003e\n\u003cli\u003ePrecision-engineered for flow optimization\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFabricators rely on GESI components for their consistent quality and ease of installation. This transition cone helps maintain exhaust velocity, which is crucial for maximizing horsepower and torque. By eliminating sharp steps in your exhaust piping, you prevent flow restriction and turbulence, allowing your engine to breathe more freely. Whether you are building a custom race car or upgrading a performance vehicle, this transition cone provides the reliability you need. Trust GGCRACING for all your high-performance exhaust fabrication needs.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular G-Sport products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-3in-inlet-outlet-4in-x-4in-catalytic-converter-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 3in Inlet\/Outlet Catalytic Converter — Universal EPA Compliant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-400-cpsi-gen-2-epa-compliant-4in-x-4in-high-output-substrate-only-350-500hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN2 400 CPSI 4in x 4in High Output Catalytic Converter Substrate — Universal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-4inx4-5in-high-output-gen2-catalytic-conv-substrate-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 4inx4.5in High Output Catalytic Converter Substrate — Unive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-6pk-400-cpsi-epa-compliant-3in-inlet-outlet-gen2-high-output-catalytic-conv-assembly\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI 6PK GEN2 400 CPSI 3in Inlet\/Outlet High Output Catalytic Converter Assembly —\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gesi-g-sport-300-cpsi-epa-compliant-gen1-4-5in-x-4in-catalytic-converter-500-850hp\" style=\"color:#0066cc;text-decoration:none;\"\u003eG-Sport GESI GEN1 300 CPSI 4.5in x 4in High Output Catalytic Converter — 500-850HP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"GESI G-Sport 4.87in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabrication Component\",\"description\":\"Streamline your exhaust build with the GESI G-Sport 4.87in OD to 3.00in ID transition cone. Durable steel construction for custom fabrication. Buy at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"G-Sport\"},\"mpn\":\"95530\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-4-87in-od-3-00in-id-inlet-outlet-transition-cone-only\",\"offers\":{\"@type\":\"Offer\",\"price\":\"49.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-4-87in-od-3-00in-id-inlet-outlet-transition-cone-only\",\"sku\":\"GSP95530\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"G-Sport\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=G-Sport\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"GESI G-Sport 4.87in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabrication Component\",\"item\":\"https:\/\/ggcracing.com\/products\/gesi-g-sport-4-87in-od-3-00in-id-inlet-outlet-transition-cone-only\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the GESI G-Sport 4.87in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabricat fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for G-Sport?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the GESI G-Sport 4.87in OD to 3.00in ID Exhaust Transition Cone \\u2014 Universal Fabricat?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41449460826196,"sku":"GSP95530","price":49.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/f6b33012ae4e0c9811dfe64595239958.jpg?v=1721603236"}],"url":"https:\/\/ggcracing.com\/collections\/g-sport\/closeout.oembed","provider":"GGCRACING INC","version":"1.0","type":"link"}