Manley Subaru WRX EJ205/STi EJ257 33mm Race Master Exhaust Valves (Set of 8)

Manley 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 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.

Upgrade your Subaru WRX or STi engine with the Manley Performance Race Series Exhaust Valves designed specifically for high-performance racing applications. Crafted from high-quality stainless steel, these valves offer exceptional durability and resistance to extreme conditions encountered during bracket, drag, and oval track racing. Their fully machined combustion faces and swirl polished under-head areas optimize airflow and combustion efficiency, contributing to improved engine performance and reliability at operating speeds up to 8,000 RPM. Suitable for engines running on alcohol fuel, these valves ensure consistent, reliable operation under demanding racing environments.
The valves are available in a variety of shapes, including Race Master (straight stem) and Race Flo, allowing customization to match your engine's specific requirements. Chrome stems and hard tips are incorporated for enhanced longevity, wear resistance, and reduced maintenance needs.
Designed to fit various Subaru Impreza models from 2002 to 2009, these valves are an essential upgrade for serious racers seeking to maximize engine output and durability. Whether you're replacing worn valves or building a high-performance engine from scratch, the Manley Subaru WRX EJ205/STi EJ257 Race Series Exhaust Valves provide a dependable solution that combines precision engineering with race-ready performance.

Features:

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

• Swirl polished under-head areas for improved airflow and combustion efficiency

• Fully machined combustion faces for precision fit and optimal performance

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

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

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

Fitment:
Subaru Impreza WRX 2002
Subaru Impreza WRX 2003
Subaru Impreza WRX 2004
Subaru Impreza WRX 2005
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 Limited 2007
Subaru Impreza WRX STI Limited 2011
Subaru Impreza WRX STI Special Edition 2010