PERRIN Differential Lockdown System 2015-2021 Subaru WRX & STI / 2012-2025 Impreza / 2024-2025 Crosstrek PDM_harness-bars A worn bushing allows excessive

A worn bushing allows excessive camber variation -- the outside rear tire changes angle under cornering load rather than maintaining the aligned value

Less oil consumption effectively raises the octane levels

higher boost pressure

During cornering

our design ensures proper airflow and optimal performance of the rear wing when installed on the vehicle

PERRIN Differential Lockdown System 2015-2021 Subaru WRX & STI / 2012-2025 Impreza / 2024-2025 Crosstrek PDM_harness-bars A worn bushing allows excessiveEnhance your Subaru's performance with the PERRIN Rear Differential Lockdown, expertly engineered to increase drivetrain rigidity and deliver sharper, more responsive throttle control.