Quote Originally Posted by Bigast View Post
I have a 1993 F350 dual with the 7.3 IDI diesel (tow rig) that I’m looking to put exhaust on it so it sounds half way descent.

Any recommendation?

And my question is what kind of back presser do I need to keep and or none and what muffler?

Thanks.
Your best bet is to run a muffler with as little restriction as possible.

Back pressure is your enemy on a diesel.