Any one tried the Donaldson Muffler M090544? It is supposed to have better flow and a great sound without being annoying at speed or under load.

 

I've not seen or heard of that model do you have a link?

Rick

 

Ryderfleetproducts.com

I have the 4" in and out 51" long mounted on my truck and it is great when pulling compared to the droning MBRP. Neat stock in sound but when you get on it you know that you have something better.

You have to add a few hanger to it but other than that it is pretty much a straight install.