Porsche 911 Classic (1978 - 1989) Turbo Rear Anti Roll Bar Bush 18mm 18mm - PFF57-209-18H For 911 Classic models 1977 onwards only. For 911 Classic models 1974 to 1977 use 4 x PFR57-412-18. Please measure anti roll bar diameter before ordering. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!