3. This particular kit is actually intended for first- andsecond-generation F-cars, so some of the tubes will need to be trimmedfor proper fit on the smaller first-gen car we're dealing with. Theinstructions advise where to expect potential fitment problems and givedimensions for cuts, but sizing up the stuff for yourself is the bestbet. The first potential problem area we found was the union between theH-pipe and the tubes leading to the muffler. Since the placement of themuffler is dictated by the available undercarriage space, we marked thetrouble area but waited to make any cuts until after trial-fitting themuffler.