Torque Solution Rear Differential Brace: Subaru WRX 2002-2007 / STI 2004-2007 Torque Solution Rear Differential Brace is a must have for your high horsepower or big turbo Subaru. Our boxed steel brace is stronger than the thin OEM steel brace and includes 75A Durometer Urethane bushings to ensure there is no differential movement. Less drivetrain movement means more power to ground. This will benefit all types of racers whether you are on a road course or at the drag strip. Features Black Powder Coated Steel Bracket 75A Urethane Bushings w/ Zinc Coated Steel Pins Helps Reduce Wheel Hop Reduces Drivetrain Movement Applications Subaru WRX 2002-2007 Subaru STI 2004-2007 What\’s In The Box? Differential Mount Warranty Limited Lifetime Warranty