WMW Race Lower Engine Mount Polyurathane Bushing for MINI Cooper and Cooper S R50 R52 R53. This is an insert to put in the stock rubber lower engine mount. These race polyurethane bushings will stiffen up the engine, and help secure it. Helping keep then engine from rocking so much under hard acceleration and braking. Easy install, remove the lower engine mount and slide these inserts into the open groves in the rubber mount, reinstall and your on your way. The urethane used for this set is a very hard urethane designed to be used for race cars or track MINI Coopers. We suggest the standard
powerflex lower engine bushing for street use.
If you like this you can also add bushing replacement for the small end of the lower mount also.