{"product_id":"rs-4-full-exhaust-system-kxf250-17-20","title":"RS-4 Full Exhaust System KXF250 17-20","description":"\u003cp style=\"text-align: justify;\"\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\u003cul\u003e\n\u003cli style=\"text-align: justify;\"\u003ePentagonal-shaped sleeve\u003c\/li\u003e\n\u003cli style=\"text-align: justify;\"\u003eFront muffler cap functions as a polyresonant chamber which helps reduce noise\u003c\/li\u003e\n\u003cli style=\"text-align: justify;\"\u003eTwo-stage stepped baffle\u003c\/li\u003e\n\u003cli style=\"text-align: justify;\"\u003eCarbon fiber end-cap\u003c\/li\u003e\n\u003cli style=\"text-align: justify;\"\u003eStainless steel header and tail-pipe\u003c\/li\u003e\n\u003cli style=\"text-align: justify;\"\u003eWeight: 0.4 lbs lighter than stock configuration\u003c\/li\u003e\n\u003cli style=\"text-align: justify;\"\u003eRepack Kits, optional Inserts and Spark Arresters are available for all models\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yoshimura","offers":[{"title":"Default Title","offer_id":56039289389435,"sku":"800349","price":977.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0648\/6881\/0972\/files\/800349_1.png?v=1769664896","url":"https:\/\/motosuperstore.co.uk\/products\/rs-4-full-exhaust-system-kxf250-17-20","provider":"Moto Superstore","version":"1.0","type":"link"}