| Year | Make | Model |
|---|---|---|
| 1994 - 2002 | Audi | A8 Quattro |
| 2004 - 2006 | Saab | 9-2X |
| 2002 - 2008 | Subaru | Forester |
| 1992 - 2011 | Subaru | Impreza |
| 1989 - 2009 | Subaru | Legacy |
| 1993 - 1998 | Subaru | Legacy Touring Wagon BG |
| 2003 - 2015 | Subaru | Outback |
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Manley Extreme Duty Valve | Subaru WRX (EJ20) / STI (00-03) (11139-1)
Manley Extreme Duty Valve | Subaru WRX (EJ20) / STI (00-03) (11139-1)
SKU:11139-1
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$63.36 USD
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$81.60 USD
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▶ Vehicle Fitments
The Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 33mm Stainless Extreme Duty Valve is a high-performance valve designed to withstand extreme engine demands. Crafted from stainless steel, these valves are engineered for durability and reliability in demanding racing environments. They are part of Manley's Extreme Duty Series, which is built to deliver exceptional strength and performance. These valves are ideal for applications requiring maximum endurance and efficiency, providing improved airflow and combustion stability. Their robust construction ensures longevity under high-stress conditions, making them suitable for high-performance and racing engines.
Designed specifically for Subaru WRX models from 2000 to 2003 and 2004 STi, these 33mm exhaust valves are a direct replacement upgrade for stock components. They are suitable for use in engines with modified or stock configurations, particularly in street, track, or racing scenarios. Installation is straightforward for qualified technicians, and these valves are intended for use in turbocharged engines requiring enhanced durability. The kit includes a single valve, and compatibility with other engine components should be verified for optimal performance. These valves are ideal for enthusiasts seeking to maximize engine output and reliability in high-performance Subaru applications.
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Overview
Overview
Manley Performance Exhaust Components
Fitment Summary
Part #: 11139-1
Overview
The Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 33mm Stainless Extreme Duty Valve is a high-performance replacement part designed for enthusiasts seeking durability and reliability under demanding conditions. Crafted from premium stainless steel, this valve is engineered to withstand extreme heat and stress, making it ideal for racing, high-performance street applications, and intensive driving scenarios. Whether you're building a race-ready Subaru or upgrading your vehicle for enhanced durability, this valve offers a robust solution that supports your performance goals. This valve is tailored for those who demand top-tier quality and consistent performance from their engine components. Its design ensures a secure fit and long-lasting operation, helping maintain optimal engine response and efficiency even in the most challenging environments.Key Features
Designed with durability and performance in mind, the Manley Extreme Duty Valve features:- Constructed from high-grade stainless steel for corrosion resistance and heat tolerance
- 33mm diameter, optimized for Subaru EJ20 and STI engines
- Engineered to handle high-stress applications such as drag racing and circle track competition
- Precision-machined for a perfect fit and reliable sealing
- Built to withstand extreme operating conditions, ensuring longevity and consistent performance
- Suitable for demanding motorsport and high-performance street use
Construction & Design
This valve is crafted from stainless steel, combining strength and corrosion resistance to endure high temperatures and aggressive operating environments. Its precise machining ensures a secure fit and optimal sealing, supporting consistent engine operation and response.Performance & Response
Designed to support high-performance applications, this valve helps maintain engine integrity under extreme conditions. Its robust construction ensures reliable operation during intense driving, contributing to improved response and durability.Installation & Fitment
This valve is designed as a direct replacement for specific Subaru WRX and STI models from 2000 to 2003, and 2004 STi variants. Proper installation requires standard mechanical procedures, and it is recommended to follow manufacturer guidelines for optimal fitment and performance.What’s Included
The package includes one stainless steel extreme duty valve, ready for installation into compatible Subaru engines. Hardware or additional components are not included and may be required depending on your specific application.
