SPEEDGEAR Racing Race Sport Valve Spring Lancer Mirage 4G13 4G15 12V SOHC 97-02

SPEEDGEAR valve springs are stiffer springs specifically designed for use with aftermarket camshafts. As valve train dynamics change with the use of high performance cam profiles and greater lift, stiffer valve springs are needed to optimize valve movement. When changing to a high lift cam, stock springs cannot match the increased valve train movement. Manufactured […]