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Manley 33mm Race Master Exhaust Valve for Subaru WRX 2.0L EJ20 (02-03)
If you're looking to upgrade your Subaru WRX's performance, the Manley 33mm Race Master Exhaust Valve is an excellent choice. Designed specifically for the Subaru WRX 2.0L EJ20 from 2002 to 2003, this valve combines durability and high performance, making it perfect for both street and race applications.
Why Choose Manley Performance Valves?
For over 40 years, Manley Performance has been at the forefront of manufacturing top-notch stainless steel valves. Their Sport Compact stainless steel valves utilize a unique "Race Series" alloy that sets the standard for quality in the industry. These valves are engineered to excel in even the harshest conditions, ensuring your engine runs smoothly and efficiently.
Key Features
- Head Diameter: 33mm
- Stem Diameter: 6mm (0.2362")
- Overall Length: 104.75mm
- Tip Length: 3.5mm
- Underhead Angle / Radius: 25° x 11/32"
- Margin: 0.060"
- Seat Width: 0.080"
- Dished Head: 20°
- Installed Height: Stock
Performance Benefits
The Manley valves are designed to outperform competitors, featuring:
- Chrome Stems: Not only do they look great, but they also provide enhanced durability.
- Swirl Polished Under Heads: This design improves airflow and efficiency.
- Hardened Tips: Ensures longevity and resistance to wear.
- Precision Machining: Closely controlled margin heights and stem-to-seat concentricity result in superior performance.
Fitment and Compatibility
This valve is specifically designed for the Subaru WRX 2.0L EJ20 engine from 2002 to 2003. It's important to check your valve guide size to ensure proper valve stem to guide clearance. In some cases, honing may be necessary when replacing factory valves.
Customer Feedback
Many customers have praised the Manley 33mm Race Master Exhaust Valve for its reliability and performance. Here are some highlights from reviews:
- "These valves fit perfectly and have significantly improved my car's responsiveness!"
- "I noticed a difference in power right away. Highly recommend for anyone looking to upgrade!"
- "Durable and well-made. They’ve held up great even under high boost conditions."
Upgrade your Subaru WRX with the Manley 33mm Race Master Exhaust Valve and experience the difference in performance and reliability. This valve is designed for enthusiasts who demand the best for their vehicles.
Note: It's recommended to check your valve guide size to achieve the proper valve stem to guide clearance. Guides may need to be honed when replacing stock factory valves.
⚠ 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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