Description
Engine builders working with 2000-2003 Subaru WRX (EJ20) / 04 STI Exhaust can use this Race Master exhaust valve family to choose the required valve dimensions while staying within the correct Manley application group. The parent listing is distinguished by Part #11155-1, which should be cross-checked against the rest of the engine combination.
If the 2000-2003 Subaru WRX (EJ20) / 04 STI Exhaust cylinder head has been ported, fitted with oversized seats, or changed from its original valvetrain layout, confirm the required valve measurements after machining rather than using a stock-size assumption.
Key Product Details
- Application: 2000-2003 Subaru WRX (EJ20) / 04 STI Exhaust
- Manley Series: Race Master
- Valve Position: Exhaust
- Title Specification: Part #11155-1
- Product Family Detail: Race Series application focus
- Manufacturer Part Number: 11155-1
Package Quantity
Sold individually. One valve is supplied per selected SKU. Order the intake or exhaust quantity required for the cylinder-head configuration being assembled. This quantity applies to the selected Manley SKU family shown on this product page.
Selection & Fitment Notes
Use the finished cylinder-head setup as the authority for selection. Oversize valves or alternate lengths may require machining and can affect installed height and valvetrain geometry.
Professional engine assembly and measurement are recommended. Product specifications should be confirmed against the selected Manley part number and the requirements of the exact engine build.