You cant always re-invent the wheel, but with the right manufacturing processes, you can make one a little bit more round.
BSH takes their catch cans seriously. Externally all cans are welded together to avoid the all too common leaking issues bolt together setups have. Internally better than the competition by incorporating mesh baffling to slow down oil vapors so they cool and condense inside the can instead of your charge piping/engine. All connections are made with push lock fittings and hose to limit the use of hose clamps that would otherwise clutter up the bay. Integrated drain fittings into the base of the catch can makes maintenance a breeze.
All of the BSH catch can systems are designed to be completely reversible and mate up with all factory pcv connections utilizing vehicle specific billet connectors. The R53 catch can kit ships complete with a laser cut stainless steel bracket that will for direct mounting to an easy to access bolt in the engine compartment.