BMW 3 Series G20, G21, G28, G80 (2018 on) Engine Mount Insert - PFF5-5452BLK PFF5-5452BLK Engine Mount Insert uses the same design as the Road Series part but with our 95A Black Series material to provide uncompromised engine stability. Mount rigidity is increased by a huge 180%. An 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. Fits 3.0ltr B58 engines only. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!