Supertech Dual Valve Spring and Retainer Kit | 2004-2021 Subaru WRX STI (SPRK-TS1015/SU1)

2004-2021 Subaru WRX STI Dual Valve Spring and Retainer Kit by Supertech

Valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms and better memory. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control.

Features

Constructed from Chrome Silicon Vanadium Steel Alloy
• Designed with CAD to Ensure Stress Levels Do Not Overpass the Limits

Benefits

• Higher Performance and Durability at High RPMs

Applications

• 2004-2021 Subaru WRX STI

What's In The Box?

• 1 - Dual Valve Spring and Retainer Kit

Warranty

• Supertech's Limited Manufacturer's Warranty