lay down the peace pipe bro!
ive got a 02 old body style dodge ram with the cummins diesel which none were equipped with a catalytic convertor. They have a resonator that is 3 1/2 inlet 4inch outlet into a HUGE muffler that is 25" long- after that the pipe is 3" stainless steel and sort of resembles something that could mount under a turbo regal.
i had mine sitting around for about a year, couldnt find out what to use it on, and tossed it into the trash. Maybe i should have saved it for my car LOL!
BW