BMW 3 Series F30, F31, F34, F80 (2011 - 2018) Ride Height Adjuster Shim 11.4mm - PFR5-427 PFR5-427 is a solution for uneven ride-height issues found on RHD vehicles. It replaces the 5.7mm OE adjuster shim increasing the shim height to 11.4mm, thus leveling the vehicle out. It can also be used on both sides of the vehicle for an overall increase to the rear ride-height. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!