{"product_id":"fmf-racing-4-stroke-muffler-packing","title":"FMF Racing 4-Stroke Muffler Packing — High-Performance Exhaust Maintenance","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 FMF Racing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eFMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing 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\/PimO0TSvu4U\" 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\u003ePremium 4-Stroke Muffler Packing by FMF Racing\u003c\/h2\u003e\u003cp\u003eMaintaining your 4-stroke exhaust system is crucial for both engine performance and noise compliance. The FMF Racing 4-Stroke Muffler Packing is designed to provide maximum sound absorption while ensuring your exhaust flow remains unrestricted. As 4-stroke engines generate significant heat, standard packing can deteriorate quickly. FMF's specialized material is built to endure these high temperatures, ensuring a longer service life and consistent performance on the track or trail.\u003c\/p\u003e\u003ch3\u003eFeatures and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Sound Control:\u003c\/strong\u003e Keeps your bike within legal decibel limits without sacrificing power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Thermal Resistance:\u003c\/strong\u003e Engineered to withstand the intense heat of 4-stroke exhaust gases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Throttle Response:\u003c\/strong\u003e Proper packing helps maintain optimal exhaust scavenging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Designed for easy trimming and installation in most 4-stroke mufflers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Quality:\u003c\/strong\u003e The same high-grade material used by top-tier racing teams.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDon't settle for a loud, inefficient exhaust. Repacking your muffler is one of the most cost-effective ways to ensure your engine performs exactly as intended. Whether you are a weekend warrior or a competitive racer, FMF Racing provides the components you need to keep your bike in top condition. Trust the experts at GGCRACING to provide the high-quality maintenance parts your machine deserves.\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 FMF Racing 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\/fmf-racing-2-stroke-muffler-packing\" style=\"color:#0066cc;text-decoration:none;\"\u003eFMF Racing 2-Stroke Muffler Packing — High-Performance Exhaust Maintenance\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/fmf-racing-exhaust-spring-puller-tool-individual\" style=\"color:#0066cc;text-decoration:none;\"\u003eFMF Racing Exhaust Spring Puller Tool — Universal Fitment\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/fmf-racing-cr250-92-07-pipe-spring-o-ring-kit-p-n-011307\" style=\"color:#0066cc;text-decoration:none;\"\u003eFMF Racing Pipe Spring \u0026amp; O-Ring Kit — Fits 1992-2007 Honda CR250R\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/fmf-racing-kx250-500-88-04-pipe-spring-o-ring-kit-p-n-011312\" style=\"color:#0066cc;text-decoration:none;\"\u003eFMF Racing Pipe Spring \u0026amp; O-Ring Kit — Fits 1988-2004 Kawasaki KX250\/KX500\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/fmf-racing-yz125-89-21-yz125x-20-22-pipe-spring-o-ring-kit-p-n-011315\" style=\"color:#0066cc;text-decoration:none;\"\u003eFMF Racing Pipe Spring \u0026amp; O-Ring Kit — Fits 1989-2022 Yamaha YZ125\/YZ125X\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\":\"FMF Racing 4-Stroke Muffler Packing \\u2014 High-Performance Exhaust Maintenance\",\"description\":\"Keep your 4-stroke exhaust running quiet and efficient with FMF Racing muffler packing. High-heat resistant material for all models. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for FMF Racing?\",\"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 FMF Racing 4-Stroke Muffler Packing \\u2014 High-Performance Exhaust Maintenance?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cat-back exhausts are bolt-on with basic hand tools \\u2014 most installs take 1-2 hours. 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