PERRIN Shift Knobs come in two different sizes. A Small Knob (1.6" diameter, 0.7 lbs.) and a Large Knob (1.85" diameter, 1 lbs.) for power shifters. The Large Knob is approximately the same diameter as the OEM WRX/STI shift knob.
The PERRIN Shift Knobs height can be adjusted by as much as 1 inch with the built-in adjustment screw. Once the height is set, tighten the lock bolt and your knob will never loosen on its own. Best . . . Show More >