{"product_id":"yoshimura-rs-12-full-exhaust-system-s-steel-crf450r-21-24-225850s321","title":"Yoshimura RS-12 Full Exhaust System S.Steel CRF450R 21-24","description":"\u003cdiv class=\"amd-overview\"\u003e\n\u003cp class=\"amd-overview__lead\"\u003eThe Yoshimura RS-12 Full Exhaust System S.Steel CRF450R 21-24 from Yoshimura is listed to fit 1 model: Honda CRF 450 R (CRF450R) 2021-2024. It is part of our exhaust full system range.\u003c\/p\u003e\n\u003cul class=\"amd-overview__facts\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e \u003cspan class=\"amd-mono\"\u003e225850S321\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Honda:\u003c\/strong\u003e \u003ca href=\"\/pages\/honda-crf450r-parts\"\u003eCRF 450 R (CRF450R) 2021-2024\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Engine Parts › Exhaust › Exhaust Full System\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eYoshimura\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Item No.\u003c\/th\u003e\n\u003ctd\u003e225850S321\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eFits these bikes\u003c\/h2\u003e\u003cp\u003eThis Yoshimura part is listed as fitting 1 model. Check your model and year below.\u003c\/p\u003e\u003ctable class=\"fitment-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/honda-crf450r-parts\"\u003eCRF 450 R (CRF450R)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2021-2024\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eProduct details\u003c\/h2\u003e\n\u003cp\u003eYoshimura rates this as the number one exhaust in Supercross and Motocross. Chase Sexton rode it to the 2023 450 Supercross title. Jett Lawrence also used it to claim the 2023 450 Motocross SMX title as part of a perfect season.\u003c\/p\u003e\u003cp\u003eThis latest RS-12 system in stainless steel is built for the Honda CRF450R\/RX. With the newest engine spec, Yoshimura's engineers wanted to extract the most usable power they could, so they created a completely new system rather than carrying the old one over. At its heart is a one-piece cast stainless steel manifold with an integrated bolt flange surface, 3x stronger than conventional designs.\u003c\/p\u003e\u003cp\u003eThe system was developed alongside, and is the closest thing to, the exhausts that 5x World Champion Tim Gajser, Chase Sexton and Jett Lawrence have used to take holeshots and win championships. The resonator inside the RS-12 silencer has grown by 50cc, a 14% increase, and a second resonator has been added to the header. Together these changes unlock a large gain in usable power.\u003c\/p\u003e\u003cp\u003eOn the latest engine spec, which has a smaller throttle body and revised ECU settings, the RS-12 adds 5% maximum horsepower and 6.5% maximum torque.\u003c\/p\u003e\u003ch3\u003eWhat it means on the bike\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEasier power delivery\u003c\/li\u003e\n\u003cli\u003eSmoother frontside torque\u003c\/li\u003e\n\u003cli\u003eYou can ride a gear higher, which frees up the suspension\u003c\/li\u003e\n\u003cli\u003eLess fatigue for the rider\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yoshimura","offers":[{"title":"Default Title","offer_id":58911372017928,"sku":"800328","price":1405.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1049\/4201\/0632\/files\/yoshimura-rs-12-full-exhaust-system-s-steel-crf450r-21-24-225850s321.png?v=1790736581","url":"https:\/\/apexpowersports.co.uk\/products\/yoshimura-rs-12-full-exhaust-system-s-steel-crf450r-21-24-225850s321","provider":"Apex Powersports","version":"1.0","type":"link"}