{"product_id":"yoshimura-rs4-race-full-exhaust-ss-cf-146500d520","title":"Yoshimura RS-4 Race Full Exhaust System - SS\/CF | Part# 146500D520","description":"\u003ch3\u003eYoshimura RS-4 Race Full Exhaust System - Stainless Steel with Carbon Fiber\u003c\/h3\u003e\n\u003cp\u003eEnhance your motorcycle's performance with the Yoshimura RS-4 Race Full System. Engineered for maximum power gains and distinctive sound, this premium exhaust features stainless steel construction with a sleek carbon fiber end cap. The RS-4's signature pentagonal muffler design delivers both aggressive aesthetics and superior exhaust flow.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePentagonal Muffler Design:\u003c\/strong\u003e Distinctive shape maximizes internal volume for improved flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolyresonant Duplex Chamber:\u003c\/strong\u003e Balances sound quality and performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Stage Core Baffle:\u003c\/strong\u003e Stepped design for customizable sound levels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Arrestor Compatible:\u003c\/strong\u003e Meets safety and noise regulations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound Insert Ready:\u003c\/strong\u003e Adjustable sound output for street or track use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull System Design:\u003c\/strong\u003e Complete header-to-muffler for maximum performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConstruction \u0026amp; Materials:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStainless steel header and mid-pipe\u003c\/li\u003e\n\u003cli\u003eCarbon fiber muffler end cap\u003c\/li\u003e\n\u003cli\u003ePrecision-welded construction\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant finish\u003c\/li\u003e\n\u003cli\u003eRace-proven durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerformance Benefits:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Horsepower:\u003c\/strong\u003e Optimized exhaust flow unlocks hidden power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Torque:\u003c\/strong\u003e Improved mid-range and top-end performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Reduction:\u003c\/strong\u003e Lighter than stock exhaust systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Throttle Response:\u003c\/strong\u003e Reduced backpressure for quicker acceleration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignature Yoshimura Sound:\u003c\/strong\u003e Deep, aggressive exhaust note\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSound Customization:\u003c\/h3\u003e\n\u003cp\u003eThe RS-4's stepped, two-stage core baffle allows for sound level adjustment. Use with optional sound insert for quieter operation on the street, or run without for maximum flow and aggressive sound on the track. Spark arrestor compatible for off-road and trail riding applications.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Yoshimura\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e RS-4 Race\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 146500D520\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Full System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel \/ Carbon Fiber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuffler Shape:\u003c\/strong\u003e Pentagonal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 14.01 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's Included:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComplete exhaust system (header to muffler)\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003cli\u003eYoshimura quality guarantee\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation:\u003c\/h3\u003e\n\u003cp\u003eStraightforward bolt-on installation. Professional installation recommended for optimal fitment and performance. All necessary mounting hardware included.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePerfect for:\u003c\/strong\u003e Riders seeking maximum performance gains, aggressive sound, and race-inspired aesthetics. Ideal for track days, canyon carving, and spirited street riding.\u003c\/p\u003e","brand":"YOSHIMURA","offers":[{"title":"Default Title","offer_id":47745332248817,"sku":"146500D520","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/1348\/7857\/files\/75a1-587e759ec3096_de30d5da-1023-422f-81c7-6d6607caa24d.jpg?v=1769650575","url":"https:\/\/howlingmoto.com\/products\/yoshimura-rs4-race-full-exhaust-ss-cf-146500d520","provider":"Howling Moto","version":"1.0","type":"link"}