The Stiffy Adjustable Engine Torque Damper is engineered to reduce deflection under hard acceleration and cornering for improved performance and power to weight transfer. Deflection in the motor mounts, as with the chassis and suspension, is a formidable enemy in power and weight transfer, robbing valuable horsepower and control. The innovative, built-in damper eliminates the huge amounts of torque shock that result from wheel-hop and once installed, transfers more power to the road and improves acceleration, shifting, and overall control and balance. The adjustable feature allows the assembly to be tuned and pre-loaded for racing and street applications.

Fits the 2006, 2007 and 2008 Honda Civic Si only...will not fit the other Civic models.