{"product_id":"manley-90-99-mazda-miata-1-8l-bp056-dohc-16-exhaust-28mm-stainless-race-master-valves","title":"Manley 1.8L BP056 DOHC 16 Exhaust 28mm Stainless Race Master Valves — Fits 1994-1997, 1999-2005 Mazda Miata","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 Manley Performance\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eManley Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Manley Performance lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eManley Performance 28mm Stainless Steel Race Master Exhaust Valves\u003c\/h2\u003e\n\u003cp\u003eElevate your Mazda Miata's engine performance with these premium Manley Race Master Exhaust Valves. Specifically designed for the 1.8L BP056 DOHC 16-valve engine found in 1994-1997 and 1999-2005 models, these valves are engineered for maximum durability and optimal airflow.\u003c\/p\u003e\n\n\u003ch3\u003eSuperior Construction and Design\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Quality Stainless Steel:\u003c\/strong\u003e Crafted from robust stainless steel for exceptional resistance to heat and wear, ensuring long-lasting performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChrome Stems \u0026amp; Hard Tips:\u003c\/strong\u003e Feature chrome-plated stems and hard tips to further enhance durability and resist valve seat wear.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwirl Polished \u0026amp; Fully Machined:\u003c\/strong\u003e The under-head areas are swirl polished to improve airflow, while the combustion faces are fully machined for precise performance and efficiency.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRace Master Series:\u003c\/strong\u003e These valves utilize a straight stem design, optimized for high-performance racing applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\n\u003cp\u003eThese Manley valves are not just about durability; they are built to perform. The precise machining and polished surfaces contribute to better cylinder filling and exhaust scavenging, leading to noticeable improvements in horsepower and torque. They are also recommended for use in alcohol-fueled engines, demonstrating their ability to withstand extreme conditions.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're rebuilding your engine for track use or seeking to extract more power from your daily driver, these Manley valves are a critical component for achieving your goals. Ensure your engine breathes freely and reliably with top-tier components.\u003c\/p\u003e\n\n\u003cp\u003eInvest in the best for your Mazda Miata. Get your Manley 28mm Stainless Steel Race Master Exhaust Valves today at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;\"\u003e\n\u003ch3 style=\"margin:0 0 8px;\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:0.92em;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#f0f0f0;text-align:left;\"\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eYears\u003c\/th\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:6px 10px;\"\u003eTrim\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e1994-1997\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eMazda\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eMiata\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e1999-2005\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eMazda\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eMiata\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003e2000-2005\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eMazda\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eMiata\u003c\/td\u003e\n\u003ctd style=\"padding:4px 10px;border-bottom:1px solid #eee;\"\u003eLS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\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 Manley Performance 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\/manley-90-99-mazda-miata-1-8l-bp056-dohc-16-intake-33mm-stainless-race-master-valves\" style=\"color:#0066cc;text-decoration:none;\"\u003eManley 1.8L BP056 DOHC 16 Intake 33mm Stainless Race Master Valves — Fits 1994-1997, 1999-\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/manley-90-99-mazda-miata-1-8l-bp056-dohc-16-exhaust-29mm-stainless-race-master-valves\" style=\"color:#0066cc;text-decoration:none;\"\u003eManley 1.8L BP056 DOHC 16 Exhaust 29mm Stainless Race Master Valves — Fits 1994-1997, 1999\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/manley-00-03-subaru-wrx-ej20-04-sti-intake-36mm-stainless-race-flo-valves\" style=\"color:#0066cc;text-decoration:none;\"\u003eManley 00-03 Subaru WRX EJ20 \/ 04 STi Intake 36mm Stainless Race Flo Valves\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/manley-00-03-subaru-wrx-ej20-04-sti-exhaust-32mm-stainless-race-master-valves\" style=\"color:#0066cc;text-decoration:none;\"\u003eManley 00-03 Subaru WRX EJ20 \/ 04 STi Exhaust 32mm Stainless Race Master Valves\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/manley-subaru-wrx-ej205-sti-ej257-33mm-race-master-exhaust-valves-set-of-8\" style=\"color:#0066cc;text-decoration:none;\"\u003eManley Performance Subaru WRX EJ205\/STi EJ257 33mm Race Master Exhaust Valves (Set of 8) —\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\":\"Manley 1.8L BP056 DOHC 16 Exhaust 28mm Stainless Race Master Valves \\u2014 Fits 1994-1997, 1999-2005 Mazda Miata\",\"description\":\"Upgrade your Mazda Miata 1.8L with Manley 28mm Stainless Steel Race Master Exhaust Valves. Enhance performance and durability. Shop now at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Manley Performance\"},\"mpn\":\"11101-8\",\"url\":\"https:\/\/ggcracing.com\/products\/manley-90-99-mazda-miata-1-8l-bp056-dohc-16-exhaust-28mm-stainless-race-master-valves\",\"offers\":{\"@type\":\"Offer\",\"price\":\"201.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/manley-90-99-mazda-miata-1-8l-bp056-dohc-16-exhaust-28mm-stainless-race-master-valves\",\"sku\":\"MAN11101-8\"}}\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\":\"Manley Performance\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Manley+Performance\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Manley 1.8L BP056 DOHC 16 Exhaust 28mm Stainless Race Master Valves \\u2014 Fits 1994-1997, 1999-2005 Mazda Miata\",\"item\":\"https:\/\/ggcracing.com\/products\/manley-90-99-mazda-miata-1-8l-bp056-dohc-16-exhaust-28mm-stainless-race-master-valves\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Manley 1.8L BP056 DOHC 16 Exhaust 28mm Stainless Race Master Valves \\u2014 Fits 1994- fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Use the fitment table above to confirm.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Manley Performance?\",\"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 Manley 1.8L BP056 DOHC 16 Exhaust 28mm Stainless Race Master Valves \\u2014 Fits 1994-?\",\"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":"Manley Performance","offers":[{"title":"Default Title","offer_id":41458460328020,"sku":"MAN11101-8","price":201.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/fc089b8f6012af76095e6ae50feb6d67.jpg?v=1721719919","url":"https:\/\/ggcracing.com\/products\/manley-90-99-mazda-miata-1-8l-bp056-dohc-16-exhaust-28mm-stainless-race-master-valves","provider":"GGCRACING INC","version":"1.0","type":"link"}