Powerflex Polyurethane Bush kit for Mazda RX-7 Generation 3 & 4 (1992-2002) Rear Anti Roll Bar Bush 16mm - PFR36-315-16 - - 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!