Subaru STI 6MT Clutch Actuation Master Kit (2003–2007)Precision Engagement Restoration for GD STI & "Golden Era" Builds. For the "Golden Era" GD STI, the clutch system is a masterclass in tactile feedbackprovided the hardware is healthy. Decades of launches and thousands of heat cycles often leave the original clutch fork pivot and springs tired, leading to a "vague" bite point or an annoying squeak. The Roo Racing 2003 2007 Master Kit addresses the specific hardware needs of the earlier 6 speed manual