{"product_id":"yoshimura-219220s320-2018-2026-suzuki-rm-z450-rs-12-full-exhaust-1-1-lbs-weight-reduction","title":"Yoshimura 219220S320 2018-2026 Suzuki RM-Z450 RS-12 Full Exhaust — -1.1 lbs Weight Reduction","description":"\u003cp\u003e\u003cb\u003eYoshimura — Factory-Level Power Curve, Uncork the True Potential of the RM-Z450\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Suzuki RM-Z450 is a holeshot machine, but the stock exhaust system is notoriously heavy and restrictive, creating a \"flat\" feeling in the upper RPM range. For riders looking to compete at the highest level, shedding weight and improving exhaust scavenging is essential. The Yoshimura RS-12 Full System was engineered over 24 months of factory-level race testing to transform the Suzuki RM-Z450 powerband, delivering a more aggressive mid-to-top end pull while cutting over a pound of unnecessary weight from the chassis.\u003c\/p\u003e\n\u003cp\u003eEvery detail of the RS-12 is built with \"Factory Quality\" standards. The asymmetrical muffler profile maximizes internal volume for better sound management and increased power, while providing superior clearance for the rear brake caliper and tire. Utilizing precision-machined joints, this system offers a perfect 360-degree seal that prevents power loss and increases the lifespan of the exhaust. The tapered inlet design allows the entire system to be pushed forward, significantly improving weight centralization and making the RM-Z450 feel lighter and more responsive in the air and through corners.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSignificant Weight Savings:\u003c\/b\u003e Weighs only 8.4 lbs compared to the 9.5 lb stock system for improved handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFactory Quality Machined Joints:\u003c\/b\u003e Precision-fit joints provide a 360-degree seal for maximum durability and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAsymmetrical RS-12 Profile:\u003c\/b\u003e Maximizes capacity for increased power while maintaining massive caliper clearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePTF Insert System:\u003c\/b\u003e Patent-pending Precision Taper Fit ring allows for quick swaps of spark arresters and inserts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMatte Carbon Fiber End Cap:\u003c\/b\u003e Innovative inner-cap mount design increases durability and simplifies maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"variant-sku h5\" style=\"font-size: 0.875rem;\"\u003e219220S320\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMoto-House MX Pro Tip:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eOn the Suzuki RM-Z450, weight centralization is key to its legendary cornering. When installing the RS-12, make sure the rubber grommet on the muffler mount is in good condition and not compressed. A fresh mount ensures the exhaust can vibrate independently of the subframe, preventing stress fractures on the aluminum muffler canister during hard landings or seat bouncing.\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018 - 2026\u003c\/td\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eRM-Z450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFAQ Questions\u003c\/h3\u003e\n\u003cp\u003eQ) \u003cb\u003eHow much weight does this save over the stock pipe?\u003c\/b\u003e\u003cbr\u003eA) The Yoshimura RS-12 full system weighs 8.4 lbs, which is a 1.1 lb reduction compared to the 9.5 lb stock Suzuki system.\u003c\/p\u003e\n\u003cp\u003eQ) \u003cb\u003eIs this system compatible with the stock Suzuki engine mapping?\u003c\/b\u003e\u003cbr\u003eA) Yes, it is compatible with stock mapping. However, for the best performance, we recommend using the white (lean) or grey (rich) couplers provided with the Suzuki RM-Z450 to fine-tune the delivery to your track conditions.\u003c\/p\u003e\n\u003cp\u003eQ) \u003cb\u003eCan I install a spark arrester for off-road use?\u003c\/b\u003e\u003cbr\u003eA) Yes. Thanks to the PTF (Precision Taper Fit) insert ring, you can easily install a Yoshimura spark arrester (sold separately) for trail-legal riding.\u003c\/p\u003e\n\u003cdiv style=\"margin-top: 20px;\"\u003e\n\u003ca href=\"\/search?q=Suzuki+RM-Z450+Performance\"\u003eSuzuki RM-Z450 Engine Mods\u003c\/a\u003e | \u003ca href=\"\/search?q=Suzuki+RM-Z450+Exhaust\"\u003eRM-Z450 Full Exhaust Systems\u003c\/a\u003e | \u003ca href=\"\/search?q=Yoshimura+RS-12+Accessories\"\u003eYoshimura RS-12 Spare Parts\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cb\u003eMoto-House MX – Choice of Champions\u003c\/b\u003e – is located in Clermont\/Montverde, FL. We are the best motocross shop in Central Florida with lightning-fast shipping.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"YOSHIMURA","offers":[{"title":"Default Title","offer_id":44586651877459,"sku":"219220S320","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/455f-5df7fe240d29e.jpg?v=1778362945","url":"https:\/\/motohousemx.com\/products\/yoshimura-219220s320-2018-2026-suzuki-rm-z450-rs-12-full-exhaust-1-1-lbs-weight-reduction","provider":"Moto-House MX","version":"1.0","type":"link"}