{"product_id":"yoshimura-rs-4-header-canister-and-end-cap-exhaust-slip-on-for-yamaha-yz250f-yz250fx","title":"Yoshimura RS-4 Header, Canister, and End Cap Exhaust Slip-On for Yamaha YZ250F \u0026 YZ250FX","description":"\u003cp\u003eRS-4 exhaust systems illustrates the endless cycle of development. Working in conjunction with the factory teams has provided us with new ways to increase performance, lower sound levels and centralize mass. The end result is a product that gives you an unparalleled competitive advantage.\n\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThe Yoshimura RS-4 exhaust system is engineered to deliver exceptional performance enhancements for Yamaha YZ250F and YZ250FX models from 2019 to 2024. Developed through close collaboration with factory teams, this system focuses on increasing power output, reducing sound levels, and centralizing mass for improved handling and balance. Crafted with precision, it provides riders with a notable competitive advantage on the track or trail. The system features a pentagonal-shaped muffler that not only contributes to the sleek aesthetic but also optimizes internal airflow for maximum efficiency. Its maximized internal volume enhances sound control and performance, making it suitable for various riding conditions. The polyresonant duplex front chamber further refines exhaust flow, reducing noise while maintaining optimal back pressure. Additionally, the stepped, two-stage core baffle ensures a balanced sound profile and performance tuning. The system is compatible with spark arrestors and sound inserts, allowing for customizable sound levels to suit different environments and rider preferences. Constructed from durable materials, the Yoshimura RS-4 slip-on offers a reliable upgrade that enhances your motorcycle's overall performance and sound profile without adding excessive weight. Whether you're racing or riding for recreation, this exhaust system is designed to meet the demands of high-performance motocross and off-road riding, providing a durable and efficient solution to optimize your Yamaha's capabilities.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003ePentagonal-shaped muffler for improved airflow and aesthetic appeal\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaximized internal volume enhances performance and sound control\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePolyresonant duplex front chamber reduces noise while maintaining flow\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStepped, two-stage core baffle for balanced sound and performance tuning\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with spark arrestors and sound inserts for customizable noise levels\u003c\/li\u003e\u003c\/ul\u003e\n\n\u003cp\u003eFitment:\n\u003cbr\u003eYamaha YZ250F  2019\n\u003cbr\u003eYamaha YZ250F  2020\n\u003cbr\u003eYamaha YZ250F  2021\n\u003cbr\u003eYamaha YZ250F  2022\n\u003cbr\u003eYamaha YZ250F  2023\n\u003cbr\u003eYamaha YZ250FX  2020\n\u003cbr\u003eYamaha YZ250FX  2021\n\u003cbr\u003eYamaha YZ250FX  2022\n\u003cbr\u003eYamaha YZ250FX  2023\n\u003cbr\u003eYamaha YZ250FX  2024\u003c\/p\u003e","brand":"YOSHIMURA","offers":[{"title":"Default Title","offer_id":45960739389637,"sku":"961-6415","price":671.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/7891\/4355\/files\/2bcf-5cc73223ea618.jpg?v=1773475717","url":"https:\/\/btqllc.com\/products\/yoshimura-rs-4-header-canister-and-end-cap-exhaust-slip-on-for-yamaha-yz250f-yz250fx","provider":"Bikes Trikes and Quads LLC","version":"1.0","type":"link"}