Manley Performance Exhaust Valve - 32mm Stainless Race Master for Subaru WRX & STI (Part Number 11155-8)

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 Manley Valve - Exhaust, Valve-R/M SUBARU WRX 32mm.

• Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.
• Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.
• Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.
• Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.
• Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.

The 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.
These 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.

Features:

• Recommended for alcohol engines, ensuring reliable performance in demanding conditions

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

• Constructed from high-quality stainless steel for durability and wear resistance

• Available in Race Master (straight stem) and Race Flo shapes to suit specific engine needs

• Chrome stems and hard tips for enhanced longevity and wear resistance

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

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1