Mitsubishi Colt (2002 - 2012) Rear Beam Bush - PFR44-510 PFR44-510 has a knurled pattern body to retain grease and allow free rotation of the bush. This prevents torsional twist in the bush material, aiding performance, reliability and increasing longevity. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!