Performance Springs Subaru EJ25 STi 2006 Single Valve Springs – PS 25109
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Performance Springs PS 25109 Single Valve Springs are designed for the Subaru EJ25 STi 2006 engine.
These performance valve springs are designed to provide improved valve train control for performance and modified EJ25 STi applications while using the standard (OEM) valve spring retainers.
The PS 25109 springs install at a 36 mm installed height and provide 100 lb of seated pressure, with a specified maximum valve lift of 0.425".
The springs feature a 27.7 mm outside diameter, 19.9 mm inside diameter and 23.1 mm coil bind.
A complete Subaru EJ25 STi 2006 engine requires 16 × PS 25109 valve springs.
Spring Specifications
- Engine Model: EJ25 STi
- Application: 2006 Subaru STi
- Spring Type: Single Valve Spring
- Maximum Valve Lift: 0.425"
- Retainers: Standard (STD)
- Installed Height: 36 mm
- Seated Pressure: 100 lb
- Outside Diameter: 27.7 mm
- Inside Diameter: 19.9 mm
- Coil Bind: 23.1 mm
- Quantity Required: 16 springs per engine
Application
- Subaru EJ25 STi 2006
- 2006 Subaru Impreza WRX STi EJ25
- Subaru EJ25 STi performance applications
- Modified EJ25 STi engines
What's Included
- 16 × Performance Springs PS 25109 Single Valve Springs
The supplier specifies that a Subaru EJ25 STi 2006 requires 16 × PS 25109 springs.
Retainers
The PS 25109 is designed to use standard/OEM retainers. Retainers are not included with this product.
Installation Information
Always verify installed height, valve lift, spring pressure, coil bind clearance, retainer compatibility and complete valve train geometry against the specific engine and cylinder head configuration before installation.
Performance Valve Springs recommends that all dimensions, pressures, applications and specifications are checked and rechecked before, during and after installation.
| Product Name | Performance Springs Subaru EJ25 STi 2006 Single Valve Springs – PS 25109 |
|---|---|
| Brands | Performance Springs |
| Engine | EJ25 |
| Make | Subaru |
Delivery & Freight
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