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Engines and Components› Camshafts and Valvetrain

Supertech

Supertech Subaru EJ20/25 64lbs/36mm Dual Spring Kit

$731.56 $585.42 Save $146.14

SKU: S00P SPRK-TS1015-SUB4-STI

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Supertech dual valve spring kits for EJ20/EJ25 Subaru WRX and STi. Includes 16 dual springs, 16 titanium retainers, and valve seat locators. All Supertech valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance and durability at high RPM, providing better structural memory. Supertech retainers are manufactured with high quality military certified Titanium alloy and are CNC machined for a tight fit.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSupertech
Part NumberS00P SPRK-TS1015-SUB4-STI

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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