{"product_id":"yms-v8-yamaha-jog-performance-exhaust-raw-190-66","title":"YMS V8 Yamaha Jog Performance Exhaust","description":"\u003ch2\u003eYMS V8 Raw Steel Performance Exhaust\u003c\/h2\u003e\u003cp\u003eTransform your 2-stroke's powerband with the \u003cstrong\u003eYMS V8 Yamaha Jog Performance Exhaust\u003c\/strong\u003e. Specifically engineered for \u003cstrong\u003e70cc to 100cc Big Bore\u003c\/strong\u003e builds, this high-flow system is designed to maximize exhaust scavenging and top-end RPMs. Featuring a \"Raw\" industrial finish with a protective clear coat, the V8 provides an aggressive racing aesthetic and a deep, crisp exhaust note that defines the Minarelli tuning scene.\u003c\/p\u003e\u003ch3\u003eTechnical Performance Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineered for Big Bore Kits:\u003c\/strong\u003e Tuned expansion chamber geometry specifically designed to complement 70cc-100cc cylinders for significant gains in mid-range torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24mm High-Flow Header:\u003c\/strong\u003e Features a 24mm inner diameter to reduce backpressure, allowing your 2-stroke engine to breathe freely at peak RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaw Steel Aesthetic:\u003c\/strong\u003e Finished in raw steel with a high-temp clear coat, showing off the precision welds for a custom \"garage-built\" racing look.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Taiwanese Manufacturing:\u003c\/strong\u003e Crafted by YMS in Taiwan, ensuring superior fitment and weld integrity compared to generic performance pipes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eComprehensive Fitment Guide\u003c\/h3\u003e\u003cp\u003eThis exhaust is designed for \u003cstrong\u003eMinarelli-style 50cc (1PE40QMB)\u003c\/strong\u003e 2-stroke engines and their big-bore variants:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eBrand\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eCompatible Models\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYamaha\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJog (3KJ, 3YK, 4JP, 4LV), Zuma (Pre-2002), Riva 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilver Fox, Thunder Bike, Panther 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChinese Clones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVarious 1PE40QMB \/ Minarelli horizontal clones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader Inner Diameter:\u003c\/strong\u003e 24mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Bolt Spacing:\u003c\/strong\u003e 48mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Bracket Spacing:\u003c\/strong\u003e 94mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Displacement:\u003c\/strong\u003e 70cc - 100cc\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cblockquote\u003e\n\u003cstrong\u003eMechanic's Note:\u003c\/strong\u003e The YMS V8 is a legendary \"Street-Pipe\" because it stays relatively quiet at idle but screams when you hit the powerband.\u003c\/blockquote\u003e\u003cblockquote\u003e\n\u003cstrong\u003eInstallation Tip:\u003c\/strong\u003e Because this is a raw steel pipe with a clear coat, avoid touching the header with bare hands during the first heat cycle to prevent oil spots from etching into the finish.\u003c\/blockquote\u003e\u003cblockquote\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e To truly unlock this pipe, ensure you are running \u003cstrong\u003e\u003ca href=\"https:\/\/www.scooterworks.com\"\u003eLighter Roller Weights\u003c\/a\u003e\u003c\/strong\u003e to keep the engine in the V8's higher powerband!\u003c\/blockquote\u003e\u003cp style=\"font-size: 0.85em; color: #666;\"\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e 190-66 \u003cbr\u003e\u003cstrong\u003eVendor:\u003c\/strong\u003e YMS\u003c\/p\u003e\u003ch3 style=\"color: #983d3c;\"\u003eThis product is not intended for use on public roads or land.\u003c\/h3\u003e","brand":"YMS","offers":[{"title":"Default Title","offer_id":49986081784088,"sku":"190-66","price":185.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/files\/528184.jpg?v=1744829154","url":"https:\/\/www.scooterworks.com\/products\/yms-v8-yamaha-jog-performance-exhaust-raw-190-66","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}