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Engines and Components› Camshafts and Valvetrain

Supertech

Supertech Subaru EJ20/25 58lbs/36mm Dual Spring Kit

$768.62 $615.08 Save $153.54

SKU: S00P SPRK-TS1012-SUB3-ST

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

Moderate — 2–4 hours

Description

This Supertech dual spring kit is built for Subaru EJ20 and EJ25 engines, featuring springs rated at 58 pounds of seat pressure at 36mm. This specific spring rate is chosen to handle higher lift camshafts and increased RPMs, making it a solid choice for performance builds where the stock springs can't keep up. The dual spring design offers improved stability at high engine speeds, helping to prevent valve float and ensure consistent valve train operation. The springs are made from high-tensile wire, a well-built material that can withstand the stresses of aggressive engine use.

Fitment

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Specifications

BrandSupertech
Part NumberS00P SPRK-TS1012-SUB3-ST

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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