Manley Performance Race Series Intake Valves for Subaru WRX and STi 37mm – Durable Stainless Steel Construction

Description

Designed specifically for high-performance Subaru WRX and STi models, the Manley Performance Race Series Intake Valves (Part Number 11140-8) are the ideal choice for engines operating under demanding conditions. Crafted from high-quality stainless steel, these valves provide exceptional durability and resistance to wear, making them suitable for engines running up to 8,000 RPM. The chrome stems and hard tips further enhance longevity, ensuring reliable performance during intense racing sessions.
These valves feature swirl polished under-head areas and fully machined combustion faces to optimize airflow and improve combustion efficiency. The variety of shapes available, including Race Master (straight stem) and Race Flo, allows for customization based on your engine’s specific racing requirements. They are particularly recommended for alcohol engines, especially as exhaust valves, where durability and performance are critical. Whether you’re building a bracket, drag, or oval track racing engine, these valves meet the rigorous demands of competitive motorsports.
Compatibility extends to several Subaru Impreza models from 2004 to 2007, ensuring a precise fit for your performance build. The combination of high-grade materials and meticulous machining makes the Manley Race Series intake valves a reliable upgrade for serious racers seeking to maximize airflow, efficiency, and engine longevity. With their robust construction and tailored design, these valves help you achieve optimal engine performance and durability without compromise.

Features:

• Stainless Steel Construction for durability and wear resistance

• Chrome Stems and Hard Tips for enhanced longevity

• Swirl polished under-head areas and fully machined combustion faces for airflow optimization

• Available in Race Master (straight stem) and Race Flo shapes for engine-specific tuning

• Recommended for alcohol engines, especially as exhaust valves

Fitment:
Saab 9-2X Aero 2005
Saab 9-2X Aero 2006
Subaru Impreza WRX 2002
Subaru Impreza WRX 2003
Subaru Impreza WRX 2004
Subaru Impreza WRX 2005
Subaru Impreza WRX 2006
Subaru Impreza WRX 2007
Subaru Impreza WRX 2008
Subaru Impreza WRX 2009
Subaru Impreza WRX 2010
Subaru Impreza WRX 2011
Subaru Impreza WRX 2012
Subaru Impreza WRX Limited 2006
Subaru Impreza WRX Limited 2007
Subaru Impreza WRX Limited 2010
Subaru Impreza WRX Limited 2011
Subaru Impreza WRX Limited 2012
Subaru Impreza WRX Premium 2009
Subaru Impreza WRX Premium 2010
Subaru Impreza WRX Premium 2011
Subaru Impreza WRX Premium 2012
Subaru Impreza WRX STI 2004
Subaru Impreza WRX STI 2005
Subaru Impreza WRX STI 2006
Subaru Impreza WRX STI 2007
Subaru Impreza WRX STI 2008
Subaru Impreza WRX STI 2009
Subaru Impreza WRX STI 2010
Subaru Impreza WRX STI 2011
Subaru Impreza WRX STI 2012
Subaru Impreza WRX STI Limited 2007
Subaru Impreza WRX STI Limited 2011
Subaru Impreza WRX STI Limited 2012
Subaru Impreza WRX STI Special Edition 2010
Subaru Impreza WRX TR 2006
Subaru Impreza WRX TR 2007