The Stovebolt Site Forums The Shop Area General Truck Talk Exhaust kit

There are numbers at the top which tell if the bend is for exhaust or tail pipe. In this case the first (blue cast) is exhaust and the second (pink cast) is tail pipe. If you're using a muffler which has the same diameter inlet and outlet be certain to let the person know that or you'll be buying an adapter and welding/brazing that on. Also (important) if you're using a muffler design different from the stock AD type, measure it carefully, draw a little picture with the measurements and take it to the person operating the machine. The new style muffler may be an oval and have the inlet on one side and exit on the opposite side where the original was round with inlet/outlet being a straight shot through. Your new muffler may also be longer or shorter or if you want things in the cab notably quieter you may want to tie the exhaust and tail pipe together and install the muffler as close to the rear of the pickup as possible (muffler right under the cab can set up odd and irritating noises and vibrations). You may (if you have the right style muffler) run the pipes all the way back and turn the muffler sideways behind the spare tire and have the final exhaust tip exit on the passenger side. You'll need to work with the muffler shop to do this, but the further the muffler is away from the engine, the quieter your exhaust will be and the shorter the tail pipe the quieter it will be.