E36 BBK Stainless Rear Brake LinesDescription We had these custom lines made to properly reach the rear Porsche Brembo caliper when installed on an E36 BMW. Even if you already have stainless rear lines, this line will need to be replaced for proper fitment. Our custom brake lines have a fitting that attaches to the caliper. You then attach the swivel fitting on the brake line to the fitting on the caliper. This eliminates the hassle of spinning the caliper onto the brake line and