Cobb Stg 1+ Drivetrain Package (Tall Weighted Knob) - Black - 2004-2021 Subaru STI 6MT PDM_clutches 22mm is the most common

22mm is the most common rear sway bar mount bushing diameter across the GR

These are Fortune Auto's new Gen 8 500 Series Coilovers

Convertible to air suspension with an upcoming coilover-to-air conversion kit

The Gemini rolled titanium is the premium Invidia option for the G37

Cobb Stg 1+ Drivetrain Package (Tall Weighted Knob) - Black - 2004-2021 Subaru STI 6MT PDM_clutches 22mm is the most commonCobb Stage 1+ Drivetrain Package Weighted Shift Knob Black 2004 2021 Subaru STI 6MT The Cobb Stage 1+ Drivetrain Package for the 2004 2021 Subaru STI 6 speed manual transmission bundles the Cobb short throw shifter, front and rear bushing kit, and a Cobb shift knob in a single purchase. This listing is the Weighted Black shift knob variant. All performance components are identical across knob color variants only the knob color and style differ.