{"product_id":"manley-subaru-wrx-sti-490in-valve-spring-and-retainer-kit-w-o-valve-locks-16-each","title":"Manley Subaru WRX\/STi .490in Valve Spring and Retainer Kit (w\/o Valve Locks) (16 each)","description":"Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs provide exceptional fatigue resistance and high-tensile strength, ensuring consistent valve control at extreme RPMs. Save time and money with these kits, featuring premium springs, retainers, designed to handle aggressive aftermarket camshafts.\nMax Lift: 0.510\" - Spring: 22185-16 - Titanium Retainer: 23185-16\nManley Sport Compatct Valve Spring and Retainer Kit\n\u003cul\u003e\n  \u003cli\u003eIncludes matched Valve Springs, Retainers, and Locks (if part number ends in \"K\"). Spring Locators included in some applications.\u003c\/li\u003e\n  \u003cli\u003eIncludes 7  Machined Valve Locks manufactured from the premium quality heat treated steel\u003c\/li\u003e\n  \u003cli\u003eHeat treated aerospace grade titanium retainers CNC machined to exacting tolerances\u003c\/li\u003e\n  \u003cli\u003eDesigned to handle aftermarket camshafts and up to 10,000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your Subaru Impreza WRX or STi with the Manley Performance Valve Spring and Retainer Kit designed for high-performance engines. Crafted from premium chrome-silicon alloy, these valve springs deliver exceptional fatigue resistance and high-tensile strength, ensuring reliable valve control at extreme RPMs. The kit includes matched valve springs, heat-treated aerospace-grade titanium retainers, and machined steel valve locks, providing a complete solution for racing and aggressive aftermarket camshaft setups. Designed to withstand engine speeds up to 10,000 RPM, these components help maximize engine performance and durability without unnecessary complexity or expense. Whether you're building a race engine or enhancing your daily driver, this kit offers the confidence of premium quality and precise engineering to meet demanding applications.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eIncludes matched valve springs, retainers, and locks for a complete installation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed from chrome-silicon alloy for durability and fatigue resistance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eTitanium retainers CNC machined to exact tolerances for precise fit\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned to handle aftermarket camshafts and high RPMs up to 10,000 RPM\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSpring maximum lift: 0.510 inches for optimal valve control\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nSubaru Impreza WRX 2002\u003cbr\u003e\nSubaru Impreza WRX 2003\u003cbr\u003e\nSubaru Impreza WRX 2004\u003cbr\u003e\nSubaru Impreza WRX 2005\u003cbr\u003e\nSubaru Impreza WRX STI 2004\u003cbr\u003e\nSubaru Impreza WRX STI 2005\u003cbr\u003e\nSubaru Impreza WRX STI 2006\u003cbr\u003e\nSubaru Impreza WRX STI 2007\u003cbr\u003e\nSubaru Impreza WRX STI 2008\u003cbr\u003e\nSubaru Impreza WRX STI 2009\u003cbr\u003e\nSubaru Impreza WRX STI 2010\u003cbr\u003e\nSubaru Impreza WRX STI 2011\u003cbr\u003e\nSubaru Impreza WRX STI Limited 2007\u003cbr\u003e\nSubaru Impreza WRX STI Limited 2011\u003cbr\u003e\nSubaru Impreza WRX STI Special Edition 2010","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":53855405441340,"sku":"man26185","price":540.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/6faafff1152b9c16bcfa074cbfa7ca6f.jpg?v=1784853904","url":"https:\/\/necycleshop.com\/products\/manley-subaru-wrx-sti-490in-valve-spring-and-retainer-kit-w-o-valve-locks-16-each","provider":"NE Cycle Shop","version":"1.0","type":"link"}