Supertech Subaru Impreza EJ25 Dual Valve Spring Kit SPRK-TS1015-SU5
Supertech Subaru Impreza EJ25 Dual Valve Spring Kit SPRK-TS1015-SU5
Part number: 8W9WV
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
Listed for: Subaru Impreza EJ25Fitment notes & questions
Valve spring kit, made to fit the Subaru Impreza EJ25 as listed below. Springs are matched to the cam lift and rpm range, so they are often changed with a cam.
Specifications
- Part type: Valve spring set
Fitment for the Subaru Impreza EJ25
Listed for the Subaru Impreza EJ25. Check your year, model and trim against the title before you order.
What it does
Weak springs let valves float, which costs power and can damage the engine. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.
Installation & tips
- Check installed height and coil bind against the spec from the brand before you start the engine.
- Retainers and locks: Make sure they match the springs.
- Valve stem seals: Replace them while the springs are off.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Confirm your year, make, model and trim match the fitment listed above (Subaru Impreza EJ25).

Before you order: Subaru Impreza EJ25 valve spring set fitment
Valve springs close the valves and keep them following the cam at high rpm.
Fitment notes
- Listed for: Subaru Impreza EJ25.
- Specs, lead time and warranty come from the manufacturer and supplier and can change. The details above this guide are the latest we have.
Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentPlan the whole job
- Retainers and locks. Make sure they match the springs.
- Valve stem seals. Replace them while the springs are off.
More for your car: Valve Springs · Subaru Parts · All Valve Springs · Engine
Questions about Subaru Impreza EJ25 valve springs
Will this fit my Subaru Impreza EJ25?
Do I need new springs with a new cam?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.