PERRIN Rear Differential Lockdown 2002-2007 Subaru WRX / 2004-2007 STi / 1993-2007 Impreza / 1998-08 Forester

The PERRIN Rear Differential Lockdown minimizes rear differential movement to improve throttle response and drivetrain precision under all driving conditions. Eliminating excess flex during acceleration delivers a firmer, more connected feeling, perfect for street and track driving.

Unlike some competitor parts that require presses or special tools for installation, the PERRIN Diff Lockdown is designed for quick and easy installation, taking 45 minutes or less with just basic tools.

The PERRIN Rear Differential Lockdown reduces movement from the rear differential to enhance driver feel while adding minimal noise, vibration, and harshness (NVH).