{"product_id":"manley-performance-exhaust-valve-32mm-stainless-race-master-for-subaru-wrx-sti-part-number-11155-8","title":"Manley Performance Exhaust Valve - 32mm Stainless Race Master for Subaru WRX \u0026 STI (Part Number 11155-8)","description":"Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM\nManley Valve - Exhaust, Valve-R\/M SUBARU WRX 32mm.\n\u003cul\u003e\n  \u003cli\u003eRecommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.\u003c\/li\u003e\n  \u003cli\u003eSwirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.\u003c\/li\u003e\n  \u003cli\u003eStainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.\u003c\/li\u003e\n  \u003cli\u003eVariety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.\u003c\/li\u003e\n  \u003cli\u003eChrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Manley Performance 00-03 Subaru WRX (EJ20) and 04 STI exhaust valves are engineered for racing enthusiasts seeking durability and performance under demanding conditions. Crafted from high-quality stainless steel, these valves are designed to withstand the rigors of high-performance engines operating below 8,000 RPM, making them an ideal choice for bracket, drag, and oval track racing. Their construction ensures longevity and resistance to wear, even in the harshest environments. The fully machined combustion faces and swirl-polished under-head areas optimize airflow and combustion efficiency, contributing to improved power output and engine responsiveness. The chrome-stem design with hardened tips enhances durability, reducing the risk of deformation and ensuring consistent performance over time.\u003cbr\u003eThese valves are recommended for alcohol engines and are available in a variety of shapes, including the Race Master (straight stem) and Race Flo configurations, allowing racers to select the best fit for their specific engine setup. Their precise engineering and robust materials make them a reliable upgrade for Subaru WRX and STI models from 2004 to 2007. Installation of these valves can help maximize engine efficiency and power, especially in high-stress racing environments. Whether you are rebuilding your engine or optimizing it for racing, the Manley Race Series valves provide a high-performance solution that combines durability with enhanced airflow characteristics. They meet industry standards for quality and are a proven choice among professional racers and enthusiasts alike.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eRecommended for alcohol engines, ensuring reliable performance in demanding conditions\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSwirl polished under-head areas and fully machined combustion faces for optimal airflow\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed from high-quality stainless steel for durability and wear resistance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAvailable in Race Master (straight stem) and Race Flo shapes to suit specific engine needs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eChrome stems and hard tips for enhanced longevity and wear resistance\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2002 Subaru Impreza WRX\u003cbr\u003e\n2003 Subaru Impreza WRX\u003cbr\u003e\n2004 Subaru Impreza WRX\u003cbr\u003e\n2004 Subaru Impreza WRX STI\u003cbr\u003e\n2005 Saab 9-2X Aero\u003cbr\u003e\n2005 Subaru Impreza WRX\u003cbr\u003e\n2005 Subaru Impreza WRX STI\u003cbr\u003e\n2006 Saab 9-2X Aero\u003cbr\u003e\n2006 Subaru Impreza WRX\u003cbr\u003e\n2006 Subaru Impreza WRX Limited\u003cbr\u003e\n2006 Subaru Impreza WRX STI\u003cbr\u003e\n2006 Subaru Impreza WRX TR\u003cbr\u003e\n2007 Subaru Impreza WRX\u003cbr\u003e\n2007 Subaru Impreza WRX Limited\u003cbr\u003e\n2007 Subaru Impreza WRX STI\u003cbr\u003e\n2007 Subaru Impreza WRX STI Limited\u003cbr\u003e\n2007 Subaru Impreza WRX TR\u003cbr\u003e\n2008 Subaru Impreza WRX\u003cbr\u003e\n2008 Subaru Impreza WRX STI\u003cbr\u003e\n2009 Subaru Impreza WRX\u003cbr\u003e\n2009 Subaru Impreza WRX Premium\u003cbr\u003e\n2009 Subaru Impreza WRX STI\u003cbr\u003e\n2010 Subaru Impreza WRX\u003cbr\u003e\n2010 Subaru Impreza WRX Limited\u003cbr\u003e\n2010 Subaru Impreza WRX Premium\u003cbr\u003e\n2010 Subaru Impreza WRX STI\u003cbr\u003e\n2010 Subaru Impreza WRX STI Special Edition\u003cbr\u003e\n2011 Subaru Impreza WRX\u003cbr\u003e\n2011 Subaru Impreza WRX Limited\u003cbr\u003e\n2011 Subaru Impreza WRX Premium\u003cbr\u003e\n2011 Subaru Impreza WRX STI\u003cbr\u003e\n2011 Subaru Impreza WRX STI Limited\u003cbr\u003e\n2012 Subaru Impreza WRX\u003cbr\u003e\n2012 Subaru Impreza WRX Limited\u003cbr\u003e\n2012 Subaru Impreza WRX Premium\u003cbr\u003e\n2012 Subaru Impreza WRX STI\u003cbr\u003e\n2012 Subaru Impreza WRX STI Limited\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbdoy\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbdoy\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":53604638490897,"sku":"11155-8","price":211.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/3830\/0689\/files\/fc089b8f6012af76095e6ae50feb6d67_2e7cd9ce-289e-43a5-a884-f296d0808ba5.jpg?v=1779983830","url":"https:\/\/shoprenegade.com\/products\/manley-performance-exhaust-valve-32mm-stainless-race-master-for-subaru-wrx-sti-part-number-11155-8","provider":"Renegade Speed by Renegade Racing \u0026 Performance","version":"1.0","type":"link"}