This is our 4th generation rotated rear mount. These are designed to help eliminate wheel hop by rotating the engine and transmission to align your axles correctly. We make these in house from 6061 aluminum and install a solid rubber bushing. This bushing isn't as stiff as poly, this keeps the vibrations low while still reducing wheel hop.
Weight Difference: Stock 2.25 lbs, OTTP 1.7 lbs.
Vehicle Fitment: Ion 04+, Cobalt 05+, HHR 06+
Torque Specs: Mount though bolt 66 ft lbs, mount to cradle 42 ft lbs.