Rear CUSTOM CONVERSION LINES BMW 3 Series E46 fitted With Brembo calipers from F series BMW M cars (F80, f82, f83, f87) image 2 is the style of hose that will be received. Each HEL Performance brake line kit is assembled in-house from the finest quality stainless steel fittings swaged directly to hard drawn tensile stainless steel braided hose.