{"product_id":"prox-steel-exhaust-valve-and-spring-kit-for-yamaha-yz-wr450f-2003-2009-part-number-28-ses2424-1","title":"PROX Steel Exhaust Valve and Spring Kit for Yamaha YZ\/WR450F (2003-2009) - Part Number 28.SES2424-1","description":"Replaces the OEM valves \u0026amp; valve springs\u003cbr\u003e\u003cbr\u003eSteel, nitrided valves for increased durability and less wear under extreme conditions\u003cbr\u003e\u003cbr\u003eStronger valve springs deal with the extra weight of the steel valves\u003cbr\u003e\u003cbr\u003eSprings are made from premium chrome vanadium steel for higher performance and durability at high rpm\u003cbr\u003e\u003cbr\u003eKit contains a set of steel intake or exhaust valves plus a set of specially designed valve springs; can be installed using the OEM retainers, bases and valve seals\n\u003cp\u003eUpgrade your Yamaha YZ or WR450F with the PROX Steel Exhaust Valve and Spring Kit, designed specifically for models from 2003 to 2009. This comprehensive kit includes durable steel components engineered to enhance engine performance and reliability. The high-quality materials ensure longevity and consistent operation under demanding conditions, making it an ideal choice for both racing and recreational riding. Installing this kit can improve exhaust flow, optimize power delivery, and extend the lifespan of your engine's exhaust system. The kit's design allows for straightforward installation, backed by PROX's reputation for precision manufacturing and reliability.\u003cbr\u003eConstructed from robust steel, the exhaust valve and spring are built to withstand high temperatures and pressure, ensuring durable performance over time. This kit is perfect for riders looking to restore or upgrade their motorcycle's exhaust system, providing a cost-effective solution to maintain optimal engine operation. Whether performing routine maintenance or a full rebuild, the PROX Exhaust Valve and Spring Kit delivers quality and performance you can trust, helping you keep your Yamaha YZ or WR450F running smoothly for miles to come.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eMade from durable steel for long-lasting performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned specifically for Yamaha YZ and WR450F models from 2003 to 2009\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes exhaust valve and spring kit for comprehensive replacement\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngineered to improve exhaust flow and engine efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEasy to install with precision-fit components\u003c\/li\u003e\u003c\/ul\u003e","brand":"PROX","offers":[{"title":"Default Title","offer_id":49998792753392,"sku":"111054","price":143.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/1980\/5424\/files\/LGA0B2916C-A4B5-42FB-93DA-15D69655EDE6.jpg?v=1783644711","url":"https:\/\/sublimepowersports.com\/products\/prox-steel-exhaust-valve-and-spring-kit-for-yamaha-yz-wr450f-2003-2009-part-number-28-ses2424-1","provider":"Sublime Powersports","version":"1.0","type":"link"}