I know it sounds odd, but has anyone installed one with a Donaldson muffler, I'm planning on the 4" 40" one M085171. I was thinking about trying to mate it with a Dodge offset muffler delete pipe to get the offset to line up better and to avoid buying the separate "off road" pipe.

-Josh

 

Sounds like a good idea as long as the beds in the delete pipe are close enough together. I used 2 offsets welded together, same effect, pics in my gallery.

 

yes it works