UPR 15-23 Mustang Urethane IRS Differential Insert Kit S550

   UPR Urethane IRS Differential Bushing Insert Kit for 2015-2023 Mustangs. 4 piece CNC urethane kit eliminates the movement the factory rubber bushings. The stock rubber bushings have voids to allow the differential to move around which translates to wheel hop under hard acceleration. By filling these voids it reduces wheel hop and improves overall handling of your car without adding any noise, vibration or harshness to the ride.

Includes 2 different sets of urethane bushings. Red is a softer urethane (durometer 80) more for street cars, Black (durometer 88) is for street/strip cars.

These give you the tightest cleanest install and fit to ensure your read end is locked solidly in place.

* 4pc Kit
* Improves Handling
* Reduces Wheel Hop
* Improves 60ft Times
* 45 Minute Installation
* Includes Grade 10.9 Hardware


Installs in 45 minutes. Includes Grade 10.9 Hardware.

2015 2016 2017 2018 2019 2020 2021 2022 2023 Mustang GT Ecoboost 2.3 V6 GT350 S550 Coyote 5.0.