Manley Performance is a premier manufacturer of high-performance engine components, specializing in forged pistons, connecting rods, crankshafts, and valvetrain parts built for extreme horsepower applications. Proudly made in the USA, Manley combines advanced engineering with precision manufacturing to deliver race-proven durability and reliability for street, drag, and motorsport engines. With a legacy spanning over 50 years, Manley Performance is trusted by professional engine builders and racing teams worldwide to push the limits of performance. Whether for high-horsepower street builds or championship-winning race cars, Manley provides the strength and innovation needed to dominate the competition.
Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material construction.Built to Last: Featuring chrome stems and hard tips for exceptional longevity and wear resistance.Optimized Performance: Swirl polished under head areas and fully machined combustion faces improve airflow and combustion efficiency.
This Part Fits:
Fitment Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012.
Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material construction.Built to Last: Featuring chrome stems and hard tips for exceptional longevity and wear resistance.Optimized Performance: Swirl polished under head areas and fully machined combustion faces improve airflow and combustion efficiency.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2006 | Saab | 9-2X | Aero |
| 2002-2012 | Subaru | Impreza | WRX |
| 2006-2007,2010-2012 | Subaru | Impreza | WRX Limited |
| 2009-2012 | Subaru | Impreza | WRX Premium |
| 2004-2012 | Subaru | Impreza | WRX STI |
| 2007,2011-2012 | Subaru | Impreza | WRX STI Limited |
| 2010 | Subaru | Impreza | WRX STI Special Edition |
| 2006-2007 | Subaru | Impreza | WRX TR |
Fitment Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012.
- Category:
- Engine Components>Valves
- Core:
- N
- Core Price:
- 0
- LTL:
- N
- MPN:
- 11137-8
- Proposition 65:
- Y
