BMW Exhaust Side N54 Catch Can Mount Bracket | CCB90Clean up and prevent freeze up of your BMW N52 N54 catch can! Our custom made solution for the N54 catch can places the separator above the exhaust manifold, beside the coolant reservoir to help heat up the catch can, which is needed for preventing condensation that has been collected from freezing over and creating crankcase pressure, which can and will blow out your gaskets and seals. The factory N54 catch can amazingly uses M5 hardware, which I