Perrin Driveshaft Carrier Bushings WRX | PSP-DRV-210

PERRIN part PSP-DRV-210 uses two male and two female stainless-steel bushings to reduce movement where the factory driveshaft carrier attaches to the chassis. The original carrier bearing and rubber support remain in place; the inserts constrain the mounting points to sharpen driveline response during throttle changes and shifts. The tradeoff is the possibility of additional gear, bearing, or exhaust-related noise and vibration entering the cabin. PERRIN lists the kit for current WRX applications including the VB generation, but it should only be installed on a mechanically healthy driveshaft and support bearing. Installation is performed beneath the vehicle and requires supporting the carrier while its fasteners are removed. Verify the stacked bushing orientation, exhaust clearance, and final torque before driving.