Performance Springs Subaru WRX EJ20 1999 & Later Single Valve Springs – PS 25109-20
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Performance Springs PS 25109-20 is the Subaru WRX EJ20 1999 & Later application of the PS 25109 single valve spring.
Designed for performance and modified Subaru WRX EJ20 engines, these single valve springs provide improved valve train control while retaining the use of standard/OEM valve spring retainers.
The springs install at 36 mm installed height and provide 80 lb of seated pressure, with a specified maximum valve lift of 0.425".
The PS 25109-20 features a 27.7 mm outside diameter, 19.9 mm inside diameter and 23.1 mm coil bind.
A complete Subaru WRX EJ20 1999 & Later engine requires 16 springs.
Spring Specifications
- Engine: WRX EJ20
- Application: 1999 & Later
- Spring Type: Single Valve Spring
- Maximum Valve Lift: 0.425"
- Retainers: Standard / OEM
- Installed Height: 36 mm
- Seated Pressure: 80 lb
- Outside Diameter: 27.7 mm
- Inside Diameter: 19.9 mm
- Coil Bind: 23.1 mm
- Quantity Required: 16 springs
Application
- Subaru WRX EJ20 1999 & Later
- Subaru WRX EJ20 performance applications
- Modified Subaru EJ20 engines
- EJ20 performance valve train applications
What's Included
- 16 × Performance Springs PS 25109 Single Valve Springs
Retainers are not included.
The springs are specified for use with standard/OEM retainers.
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 checking and rechecking all dimensions, pressures, applications and specifications before, during and after installation.
Valve spring pressure specifications have an approximate ±8% tolerance.
| Product Name | Performance Springs Subaru WRX EJ20 1999 & Later Single Valve Springs – PS 25109-20 |
|---|---|
| Brands | Performance Springs |
| Engine | EJ20 |
| Make | Subaru |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
Shipping calculations available at checkout.
If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
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