{"product_id":"rs-4-full-exhaust-system","title":"RS-4 Full Exhaust System","description":"The Yoshimura RS-4 full exhaust system has been tested and proven in top-tier racing, aiding in AMA 450 Supercross and Motocross championships. It utilizes an innovative carbon cone end cap, a two-stage stepped baffle, and a polyresonant duplex chamber that functions as a muffler within a muffler, contributing to weight savings and improved mass centralization.\n\nConstructed with a pentagonal-shaped sleeve, Yoshimura Signature Series muffler, and a carbon fiber end-cap, this exhaust system is built for performance. The head pipe is available in Stainless Steel or Titanium. It is CARB\/EPA tailpipe emissions compliant and manufactured with 100% USA-made components.\n\nThis product is vehicle specific and requires selection of the correct material option to ensure fitment. The RS-4 system is designed for closed-course competition use.","brand":"Yorishuma","offers":[{"title":"Default Title","offer_id":52664154784056,"sku":"231000D320","price":639.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687543874.jpg?v=1784334256","url":"https:\/\/store.motormia.co\/products\/rs-4-full-exhaust-system","provider":"MOTORMIA","version":"1.0","type":"link"}