BMW 2 Series F45, F46 Active Tourer (2014 - 2021) Rear Lower Arm Bush - PFR5-1313BLK PFR5-1313 is made from our Black Series 95A material for ultimate chassis control. Replaces inner and outer positions on rear lower arms. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!