Solid Brass Brake Bushings - for BMW stock sliding caliper

replacement/per/race. This is the best way to increase the performance of your stock brake calipers without going for a Big Brake Kit. The kit will eliminate caliper twisting caused by the stock rubber guide pin bushings. Results are nice even pad wear (and therefor longer pad life), and a more consistent brake system feel. Fits all BMW factory sliding single calipers made by ATE (front and/or rear)(E30,E36,E46,Z3,Z4,E28,E34,E39,E24). To insure fitment look at your stock calipers, if they have Ate embossed on the sliding caliper then they will fit. DOES NOT FIT: Girling E30 318/325 calipers, E28M5, E24M6, 850csi, E9x M3, 135i optional front 6-piston calipers. If this is for a race car, please check with rules/regulations of your sanctioning body.