Building the ExhaustTools: Chop Saw or Reciprocating Saw, Files, Welder, Torx (T40) bit, Socket Wrench, 1/4" and 7/16" socketsA) Cut the materialsUsing the chop saw or reciprocating saw, cut the 1" diameter U-Turn and the 135 Bend, as well as the 1 1/8"...