Perrin Differential Lock Down System WRX/STI 2008-2014 | PSP-SUS-535 ECU Reprogramming Black or Red

Black or Red

Improves rear suspension stability and handling

this kit helps maintain a secure seal under increased pressure and high-performance conditions

CNC Machined Flanges – Precision fit

Perrin Differential Lock Down System WRX/STI 2008-2014 | PSP-SUS-535 ECU Reprogramming Black or RedAdd drivetrain rigidity and precision to throttle input to your Subaru with the Perrin Differential Lock Down Kit. The new STI DLS kit consists of 2 aluminum bushings and 4 urethane bushings to completely remove any movement from the rear differential under extreme conditions such as drag racing and road racing. During all out driving conditions the drivetrain (diff included) will twist and move around before it starts to turn the wheels making