Porsche Cayenne Models Cayenne E3 9Y (2018 - ON) Transmission Mount Insert (Petrol) - PFF3-726 A small increase in NVH, usually at idle, should be expected when stiffening the connecting mount between the engine/transmission and chassis. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!