Subaru Impreza Differential Lockdown System - Rear - Perrin Performance - 12-25. The PERRIN Rear Differential Lockdown reduces rear carrier movement to improve drivetrain rigidity and deliver a more connected throttle feel for the Impreza platform.

Made specifically for 2012–2025 Impreza models, this PERRIN unit strengthens the rear differential mounting area to limit bushing deflection under load. By tying the carrier and chassis together more firmly, it helps the drivetrain react more consistently during hard acceleration, corner exits, and spirited driving. Constructed from CNC-machined aluminum with a durable finish, the part is a direct-fit upgrade that installs using the factory mounting points. This is an enthusiast-focused component intended to refine response without modifying the differential internals.

Features

• CNC-machined billet aluminum construction
• Direct-fit for 2012–2025 Subaru Impreza
• Reduces rear carrier movement to improve throttle response
• Durable finish for corrosion resistance

This PERRIN Rear Differential Lockdown is a targeted upgrade for drivers who want crisper rear-end response and more predictable traction under load. If you have questions about fitment, installation, or compatibility with other upgrades, call us directly — our staff can 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). If you are thinking about purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

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