Porsche 924 and S (all years), 944 (1982 - 1985) Front Anti Roll Bar Bush 21.5mm 21.5mm - PFF57-306-21.5 Fits 924 after 92CN4 02198 and Turbo after 92CN1 00306. This is a round bush, 40mm outside body diameter and 55mm overall length. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!