New to the forum!
I have a 2004 GMC 3500 Duramax, was wondering if anyone has a suggestion as to what the best bang for the buck is when it come to aftermarket exhaust?
Also, is anyone running w/o a muffler, and or the Cat? Sound? Or does the turbo keep the noise down?

Thanks

I personally have an MBRP exhaust. Running the "muffler" that came with the system.

Welcome to the site, JMS 818.

Running BANKS cat back w/ Banks muffler. Like it !!!

Take a look at my rig by clicking on the link below in my signature.

LATER!

Summit 5". So far me likie, esp. the price. If your lookin' for bling though, this isn't the one...

MPRB here, quick and painless install. Fit and finish is great also.

http://www.kydtr.com/videos/exhaust.avi Here is what the 5" from City Muffler and Performance sounds and looks like. Excuse me the truck needs to be washed.:exactly: