Select the year of your Acura RSX:
Manley 31mm Race Master Exhaust Valve for Acura 2.0L K20A2 (2002-2012)
If you're looking to upgrade your Acura 2.0L K20A2 from 2002 to 2012, the Manley 31mm Race Master Exhaust Valve (part number 11131-8) is a fantastic choice. With over 40 years of experience, Manley Performance is renowned for producing high-quality stainless steel valves that are built to last and perform under pressure.
Why Choose Manley Valves?
Manley valves are specifically engineered to excel in even the most demanding environments. These valves feature:
- Chrome Stems: Durable and visually appealing, these stems are designed for longevity.
- Swirl Polished Underheads: Enhances airflow for better performance.
- Fully Hardened Tips: Ensures durability and resistance to wear.
- Precision Machined Combustion Faces: Guarantees optimal sealing and efficiency.
- Controlled Margin Heights: Provides consistency and reliability in performance.
- Exact Stem to Seat Concentricity: This precision leads to improved engine performance.
Specifications
The Manley 31mm Race Master Exhaust Valve boasts impressive specifications:
- Head Diameter: 31mm
- Stem Diameter: 5.5mm (0.2165")
- Overall Length: 109.04mm
- Tip Length: 2.08mm
- Underhead Angle/Radius: 25° x 11/32"
- Margin: 0.065"
- Seat Width: 0.080"
- 20° Dished Head: Optimized for performance
Fitment and Compatibility
This exhaust valve is specifically designed for the Acura 2.0L K20A2 engine, ensuring a snug fit and optimal performance. Whether you're just cruising around town or pushing your limits on the track, this valve will help your engine breathe better and perform at its best.
Customer Feedback
Customers who have upgraded to the Manley 31mm Race Master Exhaust Valve rave about the noticeable improvements in their vehicle's performance. Many have highlighted:
- Enhanced throttle response
- Smoother engine operation
- Improved horsepower and torque
Important Installation Note
Before installation, it's wise to check your valve guide size to ensure the proper valve stem to guide clearance. In some cases, honing may be necessary when replacing stock factory valves to achieve the best fit.
Upgrade your Acura with the Manley 31mm Race Master Exhaust Valve and experience the performance boost that comes with superior engineering and quality!
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Make Vehicle | Model | Year |
---|---|---|
2002-2006 Acura RSX |
RSX | 2002-2006 |
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.
Sale price | None |
Wholesale price | $214.69 |
Shipping |
Weight: 4.00 Length: 12 Width: 7 Height: 3 |
Product Added At | ? |
Product Modified At | Wednesday 06 August, 2025 |
Imported By | ETLOverride |
Last Edited By | vendordata@vividracing.com |
View In Admin |
Carb Approved | No |
---|---|
Carb Number | - |
Epa Status | - |
Prop65 | - |
Carb Required | - |
Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
---|---|---|---|---|---|---|---|---|---|---|
Meyer Distributing | $186.41 | $1,097.44 | $201.09 | $201.09 | ? | 2025-08-06 06:36:25 |
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