Porsche Cayenne Models Cayenne E1 955/957 9PA (2002 - 2010) Torque Rod Bush - PFF57-1621 PFF57-1621 is an ideal replacement for particularly worn or damaged bushes where a new bush is required to control engine stability. For an insert only please use PFF57-1620. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!