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Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 33mm Stainless Extreme Duty Valves

Unlock the full potential of your Subaru WRX with Manley Performance Products' Extreme Duty Series Valves. Engineered to withstand the most demanding conditions, these valves are perfect for specialized applications where extreme force and heat resistance is a must.

  • Ideal for Top Fuel, Funny Car, and Marine Engine applications
  • XH-432 XtremeAlloy construction for exceptional durability
  • Chrome stems and hard tips for improved longevity and wear resistance
  • Swirl polished under head areas and fully machined combustion faces for optimized airflow and combustion efficiency
Make Model Year Type
Saab 9-2X 2005 Aero
Saab 9-2X 2006 Aero
Subaru Impreza 2002 WRX
Subaru Impreza 2003 WRX
Subaru Impreza 2004 WRX
Subaru Impreza 2004 WRX STI
Subaru Impreza 2005 WRX
Subaru Impreza 2005 WRX STI
Subaru Impreza 2006 WRX
Subaru Impreza 2006 WRX Limited
Subaru Impreza 2006 WRX STI
Subaru Impreza 2006 WRX TR
Subaru Impreza 2007 WRX
Subaru Impreza 2007 WRX Limited
Subaru Impreza 2007 WRX STI
Subaru Impreza 2007 WRX STI Limited
Subaru Impreza 2007 WRX TR
Subaru Impreza 2008 WRX
Subaru Impreza 2008 WRX STI
Subaru Impreza 2009 WRX
Subaru Impreza 2009 WRX Premium
Subaru Impreza 2009 WRX STI
Subaru Impreza 2010 WRX
Subaru Impreza 2010 WRX Limited
Subaru Impreza 2010 WRX Premium
Subaru Impreza 2010 WRX STI
Subaru Impreza 2010 WRX STI Special Edition
Subaru Impreza 2011 WRX
Subaru Impreza 2011 WRX Limited
Subaru Impreza 2011 WRX Premium
Subaru Impreza 2011 WRX STI
Subaru Impreza 2011 WRX STI Limited
Subaru Impreza 2012 WRX
Subaru Impreza 2012 WRX Limited
Subaru Impreza 2012 WRX Premium
Subaru Impreza 2012 WRX STI
Subaru Impreza 2012 WRX STI Limited
Since 1966 Manley has been manufacturing race proven engine internals for the domestic and more recently sport compact performance markets. Their range of products include: cranks, pistons, rings and wrist pins, connecting rods, pushrods, drive and oil systems, cylinder head components and valves. Manley products are designed to satisfy the needs of racing’s top engine builders who demand the highest quality products available. As a result, Manley performance products can be found in a variety of vehicles, including OE supercars and record breaking street performance and race cars.
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