Subaru STI 6MT Clutch Actuation Master Kit (2007–2014)The Ultimate Service Restoration for GR, GV, and Early VA STI. When you invest in a high performance clutch for your STI, the hydraulic side is only half the story. The mechanical linkagethe clutch fork, shaft, and hardwareis the silent partner that determines your pedal feel and engagement precision. Over 100,000km, these components suffer from heat cycling, pivot wear, and spring fatigue, leading to a "heavy" or "notchy" pedal that a new clutch