Perrin Differential Lock Down System WRX/STI 2008-2014 | PSP-SUS-535 ECU Reprogramming 5-inch outlets

5-inch outlets

Black or Red

All warranty and product-related claims must be handled directly through BULL BOOST

SKU: PW-SHIFTER-SBM-PL-K20

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

Perrin Differential Lock Down System WRX/STI 2008-2014 | PSP-SUS-535 ECU Reprogramming 5-inch outletsAdd 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