BMW E36 Brake Caliper Adapter Double Caliper Adapters for additional brake calipers for BMW e36 series cars (SEDAN/STATION WAGON/COUPE) with disc brakes on the rear axle. The set consists of two adapters for the left and right side.  With this product you can connect a hydraulic handbrake in our car without disturbing the original brake system! The adapter allows you to mount all sets of original rear brake systems from the above-mentioned body versions and all engine versions (disc + caliper) Example : when mounting a 320 mm disc (e46 3.0 diesel and 3.0 petrol) both calipers must also come from these engine versions.