Patent ID: 7073625

Claim:
In an exhaust system of an automotive vehicle, the combination comprising: a collector pipe having multiple inputs and a single output; a plurality of header pipes individually coupled from the head of an internal combustion engine to one of said multiple inputs of said collector pipe; an exhaust pipe directly coupled to said output of said collector pipe; with each of said header pipes and said exhaust pipe being composed of a plurality of pipe segments of preselected length, cut at their ends at preselected angles, for joining together in orientation to traverse component parts of the rear housing, steering system and control installations of the automotive vehicle; a further pipe cut into segments of preselected lengths and at preselected angles for surrounding and containing at least one of said exhaust pipe and the pipe segments thereof, and each of said header pipes and the pipe segments thereof; and with the surrounded pipe segments having a plurality of apertures spaced apart from one another substantially along their entire respective lengths; the combination supplanting any need for a muffler in the automotive vehicle exhaust system.