Audi A7 / S7 / RS7 A7 / S7 / RS7 4K8 (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!