Perrin Differential Lock Down System WRX/STI 2008-2014 | PSP-SUS-535 ECU Reprogramming Upgraded communications chip (four times

Upgraded communications chip (four times faster than G4+)

Precision engineering ensures a direct replacement fit

5-inch outlets

Exhaust tip angle: 45 degree

then finished in a durable wrinkle black powder coat to handle heat while delivering a clean

Perrin Differential Lock Down System WRX/STI 2008-2014 | PSP-SUS-535 ECU Reprogramming Upgraded communications chip (four timesAdd 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