Perrin Differential Lock Down Kit (PSP-SUS-535) | Subaru WRX 2008-2014 / STI 2008-2014

The Perrin Differential Lock Down Kit stabilizes the rear differential by limiting unwanted drivetrain movement, improving throttle response and reducing wheel hop.

KEY FEATURES

• Reduces differential movement under load
• Improves traction and acceleration consistency
• Polyurethane and aluminum components for strength
• Enhances rear-end stability during spirited driving
• Simple bolt-on installation

VEHICLE FITMENT

• Subaru WRX (2008–2014)
• Subaru STI (2008–2014)

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