I now have the BCS system fitted to my car and it is awesome. It has transformed the way the car performs and sounds. The system is a true 76mm system from the Turbo to the tailpipe. It looks OEM from the rear with the slash cut twin tailpipes but doesnt sound OEM. It sounds more like a supercar on idle and sounds perfect. When driving it is not boomy inside the cabin like some exhausts can be. At cruising speeds there are no unwanted vibrations in the cabin or drone from the exhaust. You