Kartboy Rear Differential Wedge Lock Bushing Kit 2015-2021 WRX/STI

These bushings replace and augment the squishy factory rubber bushings where the rear differential carrier, and the outriggers, mount to the car. Set of six custom polyurethane bushings, plus two custom aluminum centering cones to lock the rear diff bushings in place. The four outrigger bushings fill voids in the existing rubber bushings.

Stealth black color of all components means prying eyes (like autocross scrutineers?) will be none the wiser.

Not sure about where exactly these go? See the photos on this page.

Fits all 2015-2021 Subaru WRX/STI.