Kartboy's solution for the new rear subframe and rear differential lock down system. Machined aluminum insert to lock in the rear diff bushing inserts. Four Carrier inserts to keep everyone happy. Stealth black so the AutoX protesters will never know. Install with hand tools in under an hour.
This Part Fits
- 2015-2019 STI Kartboy Rear Diff / Carrier Wedge Lock System
- 2015-2019 WRX Kartboy Rear Diff / Carrier Wedge Lock System
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