{"product_id":"manley-00-03-subaru-wrx-ej20-04-sti-exhaust-32mm-stainless-extreme-duty-valves","title":"Manley Extreme Duty 32mm Exhaust Valves | Subaru WRX (00-03) \/ STi (04)","description":"\u003ch1\u003eManley Performance Exhaust Valves\u003c\/h1\u003e\n\u003ch2\u003eFits 2000–2003 Subaru WRX EJ20 and 2004 Subaru STi\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart #:\u003c\/strong\u003e 11137-8\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\nThe Manley Extreme Duty Series Exhaust Valves are high-performance components designed for serious automotive enthusiasts and professional racers. Crafted from premium stainless steel, these valves are engineered to withstand extreme conditions, making them ideal for demanding applications such as turbocharged engines and high-revving setups. Whether you're building a race-ready Subaru WRX or a Subaru STi, these valves provide the durability and reliability needed to maximize engine performance and longevity. They are perfect for those seeking to enhance their vehicle’s response, airflow, and overall efficiency under high-stress conditions.\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\nDesigned with precision manufacturing, these valves feature a robust stainless steel construction that offers excellent heat resistance and strength. The 32mm diameter ensures optimal airflow and combustion efficiency. Engineered for extreme duty, they support high-performance builds and aggressive driving styles. The valves are compatible with a range of tuning and modification projects, providing a reliable upgrade for your engine’s valvetrain.\n\n\u003ch3\u003eConstruction \u0026amp; Design\u003c\/h3\u003e\nManufactured from high-grade stainless steel, these valves are built to endure the intense heat and pressure of high-performance engines. The design emphasizes durability and consistent performance, with precise machining to ensure perfect fitment and sealing. The 32mm size is optimized for enhanced airflow, supporting increased power output and improved throttle response.\n\n\u003ch3\u003ePerformance \u0026amp; Response\u003c\/h3\u003e\nThese valves are intended to support high-revving and turbocharged applications, helping to improve exhaust flow and engine breathing. They contribute to better throttle response and more efficient combustion, which can translate into increased power and responsiveness during aggressive driving or racing conditions.\n\n\u003ch3\u003eInstallation \u0026amp; Fitment\u003c\/h3\u003e\nDesigned as direct replacements for OEM valves, these components are intended for professional installation or experienced enthusiasts familiar with engine assembly. Proper installation ensures optimal performance and longevity.\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\nThe package includes a set of stainless steel exhaust valves, ready for installation into compatible Subaru EJ20 and STi engines. Hardware or additional components are not included and may require separate purchase.\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\nPerfect for race car builders, performance tuners, and Subaru enthusiasts aiming to push their engines to the limit with reliable, high-quality valvetrain components.","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":51635927777567,"sku":"11137-8","price":506.87,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0229\/3877\/files\/manley-performance-extreme-duty-stainless-steel-valves-2002-2005-wrx-2004-2014-sti-11137-8-620572.jpg?v=1779937763","url":"https:\/\/shop.wheelflip.com\/products\/manley-00-03-subaru-wrx-ej20-04-sti-exhaust-32mm-stainless-extreme-duty-valves","provider":"WheelFlip","version":"1.0","type":"link"}