Perrin Rear Differential Lockdown (PSP-DRV-534) | Subaru WRX 2002-2007 / STI 2004-2007 / Forester XT 2004-2008

The Perrin Rear Differential Lockdown reduces movement of the rear differential under load, improving traction, driveline response, and overall stability for aggressive launches and cornering.

KEY FEATURES

• Minimizes differential movement for more consistent power delivery
• Improves rear-end stability under acceleration and braking
• Reduces clunking and unwanted drivetrain play
• Direct bolt-on design using factory mounting locations
• Robust construction built to handle high-performance use

VEHICLE FITMENT

• Subaru WRX (2002–2007)
• Subaru STI (2004–2007)
• Subaru Forester XT (2004–2008)

Perrin products are engineered for precision Subaru performance and long-term reliability.