I got everything installed, but i am thinking the pipe might be too short?? There is a gap between the flange on the x-pipe, and the flange on the header collectors, and i am definetly not connected because of the LOUD rumbling coming from under my hood. can anyone helo me out here, is there supposed to be a gap between the flanges??? did anyone else have problems with fitment when using bassani o/r BX x-pipe?