Sounds like a truck should
First thing I noticed was the sound and then the response I felt when I hit the gas... I'm extremely satisfied with my purchase of the system. The one thing I would suggest is that MBRP includes the clamp that attaches from the catalytic converter, all other clamps are included but had to do some serious tweaking to use the original.
2016 gmc sierra 5.3L
I gave the exhaust low marks on quality because you would think that paying that much for a catback you would get 304 SS but you get 439. To most that may not be a big deal but come on.... We are paying for the best. Also i expected a bit better fitment as the header pipe rests on the crossmember. The system has a good tone and drone on the intirrior is pretty much non existent, although don't take my word for it since i have 35" MT tires.