Perrin Rear Differential Lockdown - Subaru WRX 2002-2007 / STi 2004-2007 MF72-BCE24-PK-BLK a stronger mid-range

a stronger mid-range

000-mile service at this mileage

Salt spray tested for corrosion protection

increased off boost power

Perrin Rear Differential Lockdown - Subaru WRX 2002-2007 / STi 2004-2007 MF72-BCE24-PK-BLK a stronger mid-rangeThe PERRIN Rear Differential Lockdown is designed to eliminate unwanted movement of the rear differential, resulting in sharper throttle response and improved drivetrain precision under all driving conditions. It delivers a more connected, responsive driving experience, whether youre on the street or at the track. Key Benefits Reduces flex and movement in the rear differential under acceleration Creates a more direct connection from throttle input to