Zinoro M13 60H/100H (2015 - 2019) Rear Lower Arm Bush - PFR5-1313 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!