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Engines and Components Camshafts and Valvetrain

Supertech

Supertech Subaru Impreza EJ25 Dual Valve Spring Kit

$786.68 $629.53 Save $157.15

SKU: S00P SPRK-TS1015-SU5

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In Stock
Ships by Aug 2
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

Part #: SPRK-TS1015-SU5

MIA's Description

The Supertech Dual Valve Spring Kit for Subaru EJ25 Non Turbo DOHC/SOHC engines offers a complete valvetrain overhaul. This precision-matched set includes 16 springs, 16 retainers, and 16 seat locators, ensuring optimal performance. Key specifications include a max lift of 13.80mm, a seat pressure of 70 @ 35.5, and an open pressure of 209 @ 11.5. The springs are nitrided and shot-peened for enhanced fatigue life.

Fitment

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Specifications

BrandSupertech
Part NumberS00P SPRK-TS1015-SU5

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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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