stephenJ

I am looking for a good muffler. One that is going to have a great sound and open up the back end of my truck. I have been looking at the aero 4040 muffler. Anyone have any good insight about this muffler or other ones? I already have 4" tubing all the way through. Just need a muffler. Thanks

rustyshakelford

alot of people like the donaldson mufflers that can be found at otr stores

brett

jpfishmaster

I just put on the Rokktech last week and it sounds awesome.

Arkapigdiesel

Is the Rokktech a straight through design, or does it have some sort of a baffle in it?

Fisherguy

Some people say the Aero is too loud (and lotsa other "performance" mufflers too) and have changed to a Nelson, lotsa info on here if you use the 'search' function, been about 6 threads on mufflers in the last month.
I've got a 40" Nelson from the Cummins store, $67 Cdn, pics and info in my gallery.