Exhaust Questions

[99TJ]

Like Kelly said, one large diameter exhaust is better than duals. There is a reason you see most diesels with one instead of duals. But it also depends on what you want to accomplish. If you want the sound duals is the answer with a cross pipe some where. Get rid of the last "muffler" it is worthless. And remember, exhaltion process still requries inhalation.

would that fact be that cummins diesels are a straight 6 and only has one exhaust manifold anyway? Can't say for the v8 diesels but I would say they run a single pipe for the same reason that gas v8's run a single, its cheaper and easier to run for the factory..just my $.02

And I will also add that, I have read somewhere, might have been hot rod or soemthing back in the days I was all about HP, that the best way to run an H pipe is to run the vechicle for a while, till the pipes get hot, then you find the 2 hottest parts of each pipe, and then connect those two points with the H pipe, there was something about that being the spot with the most pressure, and the H will relieve the, forgive my english, most presssureful area of both pipes, giving you the most increased HP, that most are looking for by doing the X or H pipe...I'll stop m rambling now