# Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 33mm Stainless Extreme Duty Valves

Discover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy marine enthusiasts, and Small Block Chevy restricted carburetor circle track competitors, these valves are your ticket to unparalleled performance.

-   Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.
-   Optimized Performance: Swirl polished under head areas and fully machined combustion faces improve airflow and combustion efficiency.
-   Built to Last: Featuring chrome stems and hard tips for exceptional longevity and wear resistance.
-   XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material construction.

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:** 779.45 CAD
- **Vendor:** Manley Performance
- **Type:** Valves

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 779.45 CAD | In stock |

## Images

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

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/manley-00-03-subaru-wrx-ej20-04-sti-exhaust-33mm-stainless-extreme-duty-valves)
> Updated: 2026-06-28