Manley Performance

Manley 00-03 Subaru WRX (EJ20) / 04 STi Intake 36mm Stainless Race Flo Valves - 11138-8

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SKU:
MAN11138-8
UPC:
807298051024
MPN:
11138-8
Availability:
Regularly stocked product
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MSRP: $263.93
$211.14
— You save $52.79
Current Stock: 7

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Description

What is the material of the Manley Race Flo Valves?
Manley Race Flo Valves are constructed from high-quality stainless steel, ensuring exceptional durability and reliability under extreme racing conditions.

Can I install these valves myself?
Professional installation is strongly recommended for Manley Race Flo Valves to guarantee optimal performance and correct fitment.

Manley Race Flo Valves are engineered to meet the rigorous demands of bracket, drag, and oval track racers, boasting a 9/9 score for Engine Performance. Featuring swirl-polished and fully machined high-quality stainless steel construction with chrome stems and hard tips, these valves deliver superior airflow for maximum horsepower. Trust Manley for race-only applications demanding peak performance and unwavering durability.

Key Features

  • Swirl Polished and Fully Machined
  • exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel
  • Race Master (Straight Stem) and Race Flo shapes
  • Chrome Stems and Hard Tips
  • engineered to meet the rigorous demands of bracket, drag, and oval track racers
  • recommended choice for exhaust valves in alcohol engines

Why Choose the MAN Race Flo Valves

Delivers superior airflow for maximum horsepower gains and quicker acceleration.

Achieves exceptional durability and reliability under extreme racing conditions.

Provides enhanced valve train stability for consistent performance lap after lap.

Transforms your engine's breathing for a more aggressive and responsive driving feel.

Who Is This For?

Drag Racing — 9/10
Engineered for drag racers' rigorous demands.

Racing Competition — 9/10
Designed for bracket, drag, and oval track racers.

Track / Autocross — 8/10
Meets rigorous demands of track racers.

Street Performance — 7/10
High-quality stainless steel for performance.

Engine Performance — 9/10
Engineered for rigorous demands, high-quality materials.

Exhaust Note / Sound — 1/10
No technical data provided for sound.

Additional Resources

Official Manley Performance Product Page

Important Notices

⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Browse More: Shop All Valves — Engine Components

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Additional Information

Clearance Item:
N
MPN:
11138-8
Proposition 65:
Y
Case Lot Quantity:
1
Category:
Engine Components>Valves
Product Level:
Race Only
Drag Racing:
9/10
Racing Competition:
9/10
Track / Autocross:
8/10
Street Performance:
7/10
Engine Performance:
9/10
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