Perrin PSP-SUS-535 Differential Lockdown Kit for 2008-2014 WRX/STI & 2009-2013

Vehicle Fitment

• 2008-2014 Subaru WRX (All trims)
• 2008-2014 Subaru WRX STI (All trims)
• 2009-2013 Subaru Forester XT (Turbo)
• 2008-2011 Subaru Impreza (All trims)

Features

• Eliminates rear differential movement for sharper throttle response
• Machined 6061-T6 aluminum plates, hard black anodized
• High-durometer polyurethane bushings for zero drivetrain slop
• Reduces "spongy" acceleration feel during launch
• Easy bolt-in installation with included hardware
• Improves rear subframe stiffness and handling precision
• Resists oil, chemicals, and environmental wear
• Comes with Perrin's 5-year limited warranty

Specifications

• Material: 6061-T6 aluminum plates, polyurethane bushings
• Position: Rear differential/subframe mount
• Fitment: 2008-2014 WRX/STI, 2009-2013 Forester XT, 2008-2011 Impreza
• Includes (2) plates and (4) bushings; stainless hardware
• Color: Black anodized plates, natural polyurethane

Included Components

• 2x Aluminum lockdown plates
• 4x Polyurethane bushings
• Stainless steel installation hardware
• Installation instructions and warranty info

Product Description

The Perrin PSP-SUS-535 Differential Lockdown Kit firm-mounts your rear differential, eliminating unwanted movement during hard throttle or spirited driving. Machined from 6061-T6 aluminum and anodized black, combined with polyurethane bushings, it removes drivetrain slop and the mushy initial acceleration feel.

Specifically designed for 2008-2014 WRX/STI, 2009-2013 Forester XT, and 2008-2011 Impreza models, this kit bolts directly to factory mounting points with no chassis modifications needed. Expect crisper throttle response, a tighter rear subframe, and improved handling stability under load.

Installation takes approximately 30 minutes and includes all necessary hardware and instructions. The kit is backed by Perrin's 5-year limited warranty, offering quality and durability for performance enthusiasts.