Powerflex Polyurethane Bush kit for BMW Z3 (1994 - 2002) Rear Anti Roll Bar Bush 16mm - PFR5-504-16 - Please check anti roll bar diameter before ordering - Some part numbers may be described as for the rear but are also for the front anti roll bar on some models - Bush Size: 16mm - PRICE IS PER CAR KIT, NOT per bush. Powerflex usually price their bushes singly, but we have combined the QTY and price to keep it simple for you!