BMW 3 Series F30, F31, F34, F80 (2011 - 2018) Transmission Mounting Bush (Fast Road) - PFF5-4655H Designed with fast road driving in mind to replace the tear-prone soft rubber factory transmission mounts, a common cause of knocking, mis-shifting and over-revving. Fits RWD vehicles only. Made using CNC machined Aluminium Caps with captive securing bolts and a Yellow 70A Durometer polyurethane body, they increase stiffness over OE by 150%, whilst minimising NVH transmission.They are also the perfect accompaniment to our PFF5-4650 Tuneable Engine Mount on E36/E46/E9* models. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!