SKU: PSP-SUS-535 PERRIN Differential Lockdown Kit for Subaru Add drivetrain rigidity and precision to throttle input to your Subaru with our PERRIN Differential Lockdown Kit.  Elevate your Subaru’s performance with the PERRIN Differential Lockdown Kit, designed to deliver unparalleled drivetrain precision and rigidity. Engineered for models including the 2008-2025 WRX, STI, Impreza, Crosstrek, and 2009-2013 Forester XT, this kit eliminates rear differential movement under all driving conditions—whether you’re carving corners on the track, drifting, drag racing, or cruising the streets. Key Features: Zero Movement Design: Includes two precision-machined 6061-T6 aluminum plates and four high-strength urethane bushings to lock the rear differential in place, eliminating the “squishy” or “spongy” feel during acceleration. Specs: Bushing Material Urethane Plate Material CNC Aluminum Plate Finish Anodize Black Included: (2) PERRIN Aluminum Lock Down Plates (4) PERRIN Urethane Bushings Warranty & Instructions Fitment: Subaru Crosstrek: 2013–2025 Subaru Crosstrek Wilderness: 2024–2025 Subaru Forester XT: 2009–2013 Subaru Impreza: 2008–2025 Subaru STI: 2008–2021 Subaru WRX: 2008–2025 Manufacturer: Perrin Performance  Description: PERRIN 08-14 Subaru WRX/STI / 08-11 Impreza / 09-13 Forester XT Diffrential Subframe Lockdown System Product Name: PA Diff Subframe Lockdown Box 1 Dims (LxWxH-W): 7.2 x 6.3 x 2.8 - 0.7 Born On Date: 12-23-2010