GrimmSpeed 6-Speed Shifter Bushing Kit 2004-2021 STI

The GrimmSpeed 6-Speed STI Shifter Bushing Kit replaces the factory rubber shifter bushings with higher durability polyurethane components designed to reduce shifter play and restore precise gear engagement.

Over time, OEM rubber bushings degrade and allow excess movement in the shifter linkage. This kit addresses that issue by replacing the factory components with firmer polyurethane bushings that stabilize the shifter assembly and significantly improve shift feel.

The kit includes both front and rear bushings to support the entire shifter assembly. The front bushings utilize a 90A durometer polyurethane compound to minimize flex, while the rear bushing uses an 80A compound to balance rigidity with everyday drivability. Precision machined 304 stainless steel inserts distribute load and improve durability, while zinc coated hardware provides corrosion resistance and reliable installation.