Powerflex Polyurethane Bush kit for BMW E46 3 SERIES (1999 - 2006) Rear Subframe Rear Bush Insert - PFR5-4613 - Fits all X3, E46 and Z4 vehicles including M3 and Z4M. Fits into voids in original bush OE numbers: 33316770781 and 33312283419. - Bush Size: - 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!