Manley Performance Valve Spring and Retainer Kit — Compatible with 2002–2014 WRX, 2004–2021 STI, 2005–2012 Legacy GT, and 2004–2013 Forester XT (Valve Locks Not Included)

Description

The Manley Performance Valve Spring and Retainer Kit has been designed to accommodate high-lift cams, and to allow users to surpass OEM rev limitations when power levels have been increased from built motors, larger turbochargers, aggressive cams, or ported heads. Basically if you plan on drag racing, time trials, or any form of spirited driving where the engine lives in the upper- RPM range then upgraded valve springs are a must.

The Manley Performance Valve Springs and Retainers are fabricated from high grade steel and titanium respectfully, and the max net lift is 0.525”

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