Perrin Diff Lockdown for 2008-2014 WRX/STi (PSP-SUS-535) VENDOR15 and fuel pulse dampers

and fuel pulse dampers

5 through Evo 9 models

• Tread Width: 9

5 seconds maximum

The matching washers are linked below

Perrin Diff Lockdown for 2008-2014 WRX/STi (PSP-SUS-535) VENDOR15 and fuel pulse dampersThe Perrin differential lockdown kit for 2008 2014 WRX STi adds drivetrain rigidity and precision to throttle input by reducing movement from the rear diff. Under tough driving conditions, the drivetrain and differential will twist. This causes a "squishy" or "spongy" feel on initial acceleration. This kit will lock the differential down for significantly reduced movement and better driver feel. Vehicle Fitment: 2008 2014 Subaru WRX 2008 2014 Subaru