{"product_id":"yoshimura-rm-z450-08-17-rmx450z-10-11-rs-4-stainless-full-exhaust-w-aluminum-muffler","title":"Yoshimura RM-Z450 08-17\/RMX450Z 10-11 RS-4 Stainless Full Exhaust, w\/ Aluminum Muffler","description":"\u003cp\u003eThe work that went into developing the RS-4 muffler has paid big dividends in Off-road Racing; winning multiple Supercross and Motocross titles since it's inception. We've developed the current generation RS-4 based on that research \u0026amp; development, and the result is a unique design that provides an unrivaled combination of power and quiet exhaust tone. The RS-4 features a Polyresonant duplex chamber and two-staged stepped baffle for increased performance, while a carbon cone end cap finishes off its innovative styling.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePentagonal-shaped sleeve\u003c\/li\u003e\n\u003cli\u003eFront muffler cap functions as a polyresonant chamber which helps reduce noise\u003c\/li\u003e\n\u003cli\u003eTwo-stage stepped baffle\u003c\/li\u003e\n\u003cli\u003eCarbon fiber end-cap\u003c\/li\u003e\n\u003cli\u003eStainless steel header and tail-pipe\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.yoshimura-rd.com\/collections\/replacement-service-parts\/repack\"\u003eRepack Kits\u003c\/a\u003e, optional \u003ca href=\"https:\/\/www.yoshimura-rd.com\/collections\/replacement-service-parts\/low+volume+insert\"\u003e Inserts\u003c\/a\u003e and \u003ca href=\"https:\/\/www.yoshimura-rd.com\/collections\/replacement-service-parts\/spark+arrester\"\u003e Spark Arresters\u003c\/a\u003e are available for all models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSound Insert\/Spark Arrester Options                 \u003c\/h6\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable style=\"width: 58.2143%; height: 175px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 23.7654%; height: 19.5938px;\"\u003e\n\u003cdiv\u003e\u003cstrong\u003eSound Level\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 27.1605%; height: 19.5938px;\"\u003e\u003cstrong\u003eVolume Insert\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 28.3951%; height: 19.5938px;\"\u003e\u003cstrong\u003eSpark Arrestor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 19.1358%; height: 19.5938px;\"\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 46.2812px;\"\u003e\n\u003ctd style=\"width: 23.7654%; height: 46.2812px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003cimg width=\"\" height=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0015\/1594\/6087\/files\/VN-01_65061f2f-33e5-4d36-bef5-5b1e0515a31d_100x100.png?v=1746738389\" style=\"margin-top: 6px; margin-bottom: 6px; float: none;\" width=\"45\" height=\"30\"\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 27.1605%; height: 46.2812px; text-align: center;\"\u003e\u003ca href=\"https:\/\/www.yoshimura-rd.com\/products\/insert-kit-low-volume-rs-4-muffler-ins-14-k\"\u003eINS-14-K\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 28.3951%; height: 46.2812px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 19.1358%; height: 46.2812px; text-align: center;\"\u003eInstalled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.5938px;\"\u003e\n\u003ctd style=\"width: 23.7654%; height: 20.5938px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003cimg width=\"\" height=\"\"\u003e\u003cimg height=\"30\" width=\"44\" style=\"margin-top: 6px; margin-bottom: 6px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0015\/1594\/6087\/files\/VN-02_4e69fe3b-c1c7-45c6-8298-a5821ad1ec30_100x100.png?v=1746738389\"\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 27.1605%; height: 20.5938px; text-align: center;\"\u003e\u003ca href=\"https:\/\/www.yoshimura-rd.com\/products\/insert-kit-low-volume-rs-4-muffler-ins-2m28-k\"\u003eINS-2M28-K\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 28.3951%; height: 20.5938px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 19.1358%; height: 20.5938px; text-align: center;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd style=\"width: 23.7654%; height: 35.5938px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003cimg width=\"\" height=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0015\/1594\/6087\/files\/VN-03_235912a7-f52a-4053-acc4-f91b9da6f5d0_100x100.png?v=1746738389\" style=\"margin-top: 6px; margin-bottom: 6px; float: none;\" width=\"45\" height=\"30\"\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 27.1605%; height: 35.5938px;\"\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 28.3951%; height: 35.5938px; text-align: center;\"\u003e\u003ca href=\"https:\/\/www.yoshimura-rd.com\/products\/insert-kit-spark-arrester-rs-4-sa-04-k\"\u003eSA-04-K\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 19.1358%; height: 35.5938px; text-align: center;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e  \u003c\/p\u003e","brand":"Yoshimura","offers":[{"title":"Default Title","offer_id":51973376966840,"sku":"YO-219200D320","price":1310.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8230\/1624\/files\/YO-219200D320_52763950-3e50-4abf-ad5d-b5f7b56cc167.jpg?v=1760061483","url":"https:\/\/www.toptwomoto.com.au\/products\/yoshimura-rm-z450-08-17-rmx450z-10-11-rs-4-stainless-full-exhaust-w-aluminum-muffler","provider":"Top Two Moto","version":"1.0","type":"link"}