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Manley 32mm Extreme Duty Exhaust Valve for Subaru WRX 2.0L EJ20 (02-03)
When it comes to enhancing your Subaru WRX's performance, the Manley 32mm Extreme Duty Exhaust Valve (part number 11137-8) is a game changer. With over 40 years of expertise, Manley Performance is known for crafting top-notch stainless steel valves designed to withstand the toughest conditions on the track or the street.
Unmatched Quality and Performance
Manley valves are engineered for excellence, featuring:
- Head Diameter: 32mm
- Stem Diameter: 5.96mm (0.2345")
- Overall Length: 104.75mm
- Tip Length: 3.5mm
- Underhead Angle/Radius: 25° x 11/32"
- Margin: 0.060"
- Seat Width: 0.100"
- Dished Head: 20°
- Installed Height: Stock
Designed for Extreme Conditions
What sets the Manley Extreme Duty valves apart is their Extremealloy material, which offers superior hot hardness and high-temperature strength. This makes them perfect for high-boost applications, where exhaust gas temperatures can soar. Whether you're pushing your WRX to the limit on the track or cruising around town, these valves will ensure optimal performance.
Perfect Fit for Your Subaru WRX
The Manley 32mm valves are specifically designed for the Subaru WRX 2.0L EJ20 models from 2002 to 2003. This means you can trust that they will fit seamlessly and function perfectly within your engine. Just remember to check your valve guide size to ensure the proper valve stem to guide clearance. In some cases, honing the guides may be necessary when replacing stock valves.
Customer Feedback
Here's what some satisfied customers are saying about the Manley 11137-8 valves:
- "These valves made a noticeable difference in my WRX's performance. The quality is top-notch!"
- "I was impressed with how well they held up under extreme conditions. Highly recommend!"
- "Installation was straightforward, and they fit perfectly. Great product!"
Why Choose Manley?
Whether you're a street enthusiast or a serious racer, Manley stainless steel valves are suitable for a range of applications—from mild street performers to high-powered race cars pushing over 1000 horsepower. Invest in quality and performance with Manley.
Note: Always ensure to verify your valve guide size for the best results. Proper clearance is essential for optimal valve performance.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Make Vehicle | Model | Year |
---|---|---|
2002-2003 Subaru WRX |
WRX | 2002-2003 |
Manley Performance, formerly called Manley Speed Equipment, was established in 1966 by Hank Manley shortly after his graduation from Brown University. His interest in the performance and racing traced back to 1960 when, at age 17, he rebuilt a 312 CID Ford V8 engine, installed a camshaft and three two-barrel carbs, and raced a ’56 Thunderbird on New Jersey’s streets. Initially, the company’s product lineup included stainless valves, lifters, camshafts, forged pistons, vanadium valve springs, pushrods, and timing chain kits. By 1998, Manley had outgrown its first Bloomfield, New Jersey facility and bought several acres in Lakewood, New Jersey. It was around this time that the brand’s name formally changed to Manley Performance. Nearly a decade later, the production space doubled in size.
Evolving in the Automotive SpaceLed by GM Michael Tokarchik in 2002, Manley entered the high-performance passenger car market as an OEM supplier of connecting rods for the 2003/2004 Ford SVT Mustang Cobra. Production reached 2500 rods per week without missing a single delivery date. Ford awarded Manley its highest ever supplier rating. Manley’s presence in the OEM market continued from there as a supplier for the Ford GT. After nearly 50 years since its inception, Manley continues to be globally recognized as the leading manufacturer of performance valves, connecting rods, cylinder head components, pushrods, drive and oil systems, and several other engine parts.
What is Manley’s Specialty?Manley Performance specializes in high-performance engine internals that range from stock replacements to full-on race applications. They have been the standard of the industry since their inception; a fact that still remains true now as they have ventured into new markets. Today, Manley Performance continues to re-define itself in a high-performance aftermarket industry that is constantly evolving. The brand has developed a wide range of new products for growing markets that include sport compact, Ford modular, and Chevy LS. Manley also maintains its leadership role with the traditional V8 engine business.
Get Manley Performance at Vivid RacingIf you are in need of a serious upgrade to your engine, then Manley Performance parts should be on your list. Like all of our suggested manufacturers, Manley uses the best materials available to ensure a quality part for your engine. We carry Manley connecting rods, crankshafts, pistons, and valve components. The large lineup of domestic parts includes sport compact vehicles, Ford modular engines, GM’s LS series internals, and HEMI product upgrades for Chrysler.
If you can’t find what you’re looking for or need help choosing the right part for your car, call our sales team at (480) 966-3040. We are here to make your buying experience a breeze.
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