{"product_id":"fast-pro-universal-slip-on-muffler-1-5-2-38-51mm-for-scooters-atvs-dirt-bikes-390mm-compact-bolt-on","title":"Fast Pro Universal Slip-On Muffler 1.5–2\" (38–51mm) for Scooters, ATVs \u0026 Dirt Bikes — 390mm Compact Bolt-On","description":"\u003cp\u003e\u003cb\u003eFast Pro's Universal 1.5–2\" inlet hexagon slip-on exhaust is a versatile replacement muffler designed to fit 38–51mm exhaust outlets on scooters, ATVs, dirt bikes and street motorcycles.\u003c\/b\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis slip-on muffler offers a simple, bolt-on upgrade or replacement for riders who need a compact, durable exhaust solution without custom fabrication. Built to match a broad range of mid-size motorcycle and powersport exhaust diameters, it provides an easy way to restore functionality or change tone and appearance. The unit ships complete with visible mounting hardware and a 390mm overall length to suit many stock and aftermarket setups.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Fast Pro slip-on mount to different pipe sizes?\u003c\/h3\u003e\n\u003cp\u003eThe muffler uses a tapered hexagon inlet and includes adjustable clamping hardware to accommodate 38–51mm (1.5–2\") outlet diameters. Installation is bolt-on where the inlet slides over the tailpipe and the clamp tightens for a secure fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConnection diameter: 38mm–51mm (1.5–2\").\u003c\/li\u003e\n  \u003cli\u003eSupplied with mounting hardware for immediate fitment.\u003c\/li\u003e\n  \u003cli\u003eHexagon inlet shape helps prevent rotation once clamped.\u003c\/li\u003e\n  \u003cli\u003e390mm overall length for compact clearance on most bikes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance and durability features does it include?\u003c\/h3\u003e\n\u003cp\u003eDesigned as a universal replacement, the muffler balances corrosion resistance and weight for everyday riding. While not a race-only part, it offers a durable body and a construction suited to road and off-road use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSturdy outer shell resists dents and abrasion in typical riding conditions.\u003c\/li\u003e\n  \u003cli\u003eUniversal fit eliminates the need for unique flanges or welds in many applications.\u003c\/li\u003e\n  \u003cli\u003eShort 390mm profile reduces risk of scraping on trails and tight turns.\u003c\/li\u003e\n  \u003cli\u003eHardware included to minimize extra purchases at install time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this muffler work on my bike and what do I need to check before buying?\u003c\/h3\u003e\n\u003cp\u003eIt fits most bikes with outlet pipe diameters between 38mm and 51mm, including scooters, ATVs, dirt bikes, quads and many street motorcycles. Confirm your exhaust outlet diameter and clearance around the tailpipe before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasure the outer diameter of your existing tailpipe to ensure 38–51mm compatibility.\u003c\/li\u003e\n  \u003cli\u003eCheck available length and mounting points—390mm overall length may need clearance.\u003c\/li\u003e\n  \u003cli\u003eVerify whether additional brackets or spacers are required for unique frames.\u003c\/li\u003e\n  \u003cli\u003eInstallation instructions are not included; basic mechanical skill and tools are needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for?\u003c\/p\u003e\n\u003cp\u003eThis Fast Pro universal hexagon slip-on muffler is aimed at riders and mechanics who want a low-cost, straightforward exhaust replacement or aesthetic upgrade for small to mid-size powersport machines. It's a practical choice for scooter owners, ATV and quad riders, dirt bike enthusiasts and street-bike hobbyists needing a compact, clamp-on solution compatible with 38–51mm tailpipes. Professionals and DIYers who can perform basic exhaust work will find it quick to fit and useful for restoring or changing an exhaust setup without welding or custom fabrication.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What pipe sizes does this muffler accept?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits exhaust outlets from 38mm to 51mm (1.5–2\"), using the included clamp for a secure slip-on fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is installation hardware included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the muffler ships with the visible clamps and bolts shown, but no written instructions are provided.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Fast Pro","offers":[{"title":"Default Title","offer_id":48079837823134,"sku":"B07B29T6FG","price":67.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/fast-pro-exhaust-front-view.jpg?v=1785772280","url":"https:\/\/northtrailauto.ca\/products\/fast-pro-universal-slip-on-muffler-1-5-2-38-51mm-for-scooters-atvs-dirt-bikes-390mm-compact-bolt-on","provider":"North Trail Auto","version":"1.0","type":"link"}