Perrin Differential Lock Down System Subaru WRX / STI 2008-2014 / Forester XT 2009-2013 | PSP-SUS-535 Pricemoled Mating weld flanges are made

Mating weld flanges are made out of 304L

They are shot peened and 100% magnafluxed and use either 3/8in ARP 2000 fasteners or optional super strength ARP Custom Age 625+ cap fasteners

Increases horsepower

0 Quick Release features many options that conventional ball-locking quick release system do not

Perrin Differential Lock Down System Subaru WRX / STI 2008-2014 / Forester XT 2009-2013 | PSP-SUS-535 Pricemoled Mating weld flanges are madeFitment Information: 2008 2014 Subaru WRX 2008 2014 Subaru STI 2009 2013 Subaru Forester XT Features: Designed to remove any and all movement from the rear differential under all driving conditions Ideal for street driving or track use Removes the spongy feeling at the point of initial acceleration Bushing Material Urethane Plate Material CNC Aluminum Plate Finish Anodize Black Easy Installation Estimated Installation Time 30 Minutes Installation