Powerflex Polyurethane Bush kit for Audi S3 Mk1 Typ 8L 4WD (1999-2003) Rear Arm Inner Bush - PFR3-510BLK - This part replaces OE numbers: 1J0505323L and 1J0505323N. For an adjustable version of this bush please use PFR3-510G. - 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!