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

Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM

-   Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.
-   Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.
-   Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.
-   Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.
-   Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.

This Part Fits:

Year

Make

Model

Submodel

2005-2006

Saab

9-2X

Aero

2002-2012

Subaru

Impreza

WRX

2006-2007,2010-2012

Subaru

Impreza

WRX Limited

2009-2012

Subaru

Impreza

WRX Premium

2004-2012

Subaru

Impreza

WRX STI

2007,2011-2012

Subaru

Impreza

WRX STI Limited

2010

Subaru

Impreza

WRX STI Special Edition

2006-2007

Subaru

Impreza

WRX TR

## Details

- **Price:** 314.1 CAD
- **Vendor:** Manley Performance
- **Type:** Valves

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 314.10 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- User 1
- User 1
- Photo - out of package
- User 1

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/manley-00-03-subaru-wrx-ej20-04-sti-intake-36mm-stainless-race-flo-valves)
> Updated: 2026-06-27