Perrin Rear Differential Lockdown System WRX / STI (2008-2014) Mercedes Over time harmful oil will

Over time harmful oil will build up inside the turbocharger

long life disc and positive engagement

2003-2007 Nissan 350Z

Carbon semi-metallic friction material

direct replacement or upgrade to the standard

Perrin Rear Differential Lockdown System WRX / STI (2008-2014) Mercedes Over time harmful oil willAdd drivetrain rigidity and precision to throttle input to your Subaru WRX STI 2008 2014 with this PERRIN Performance Differential Lockout Kit. PERRIN Differential Lockdown kit consists of 2 aluminum plates and 4 urethane bushings to completely remove any and all movement from the rear differential under all conditions. From performance street driving, to road racing, drifting or drag racing this will handle and improve it all! Under these conditions