I belive that on my 06 Ram 2500, that the stock exaust piping is 4"soI am wondering why buy a 4" kit if I can just put in an aftermarkert muffler? I would think that I would gain preformance by just getting rid of that 200 lbs stock muffler! LOL!

 

yes, you have a full 4" muffler. . . just get a replacement muffler and you'll be good.

 

sweet, that will save me a few hundred $$. thanks for the help.

 

or if you just want you can get a muffler delete. . .and a cat delete pipe and go straight pipe for the loudest meanest rig in town