Powerflex’s PFF5-5452 Engine Mount Insert is a two-piece kit made using their Red 65A durometer material, designed to fill the voiding of the OE rubber mount to limit drivetrain movement and sharpen throttle response on standard or mildly tuned vehicles. Mount rigidity is increased by 100%. A small increase in NVH, usually at idle, should be expected when stiffening the connecting mount between the engine/transmission and chassis. The harder the material used, the greater the NVH transmitted.

Also available in Powerflex’s Black Series for track/race use. Fits BMW part numbers 22116860465 and 22116860466. Priced per pair.

Instructions can be found here.