Subaru WRX Diff Subframe Lockdown - Rear - Perrin Performance - `02-`07 is a PERRIN rear differential lockdown designed to reduce drivetrain movement and sharpen throttle response. It fits the 2002–2007 WRX and is engineered to improve rear subframe stability without modifying core components.

This PERRIN Rear Differential Lockdown clamps the rear differential to the subframe to limit rotation and movement under acceleration, braking, and cornering. Built to work with the factory mounting points, it helps deliver more predictable power delivery and a firmer feel from the drivetrain. The part is compatible with a range of Subaru platforms specified by PERRIN, and is intended for enthusiasts seeking a measurable improvement in rear-end rigidity without major fabrication.

Features

• Designed to increase drivetrain rigidity and reduce differential movement
• Direct-fit design for factory mounting locations on specified Subaru models
• Improves throttle response and rear-end feedback under load
• Manufactured to PERRIN's specifications for the 02–07 WRX and compatible models

If you have questions about fitment, installation, or compatibility with your build, call us directly — we’re happy to help. We have two locations offering installation and customization services: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) for advice or to schedule service.

If you’re considering purchasing multiple items, contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov