If you're looking for loud and with rumble.. look elsewhere.
There was not a lot of reviews and videos on the super 50. I was looking to subtle rumble, with no/little drone. Pros: great build quality little to no drone price Cons: weld in, so a little more complex than a cat back exhaust system too quiet While it is louder than stock oem exhaust, it's still way to quiet (for me). This muffler is how trucks should come stock. If you're looking for something slightly louder/rumble than stock, this is it.
Not happy with fuel milage!!
I bought a Super 50 muffler to get better milage for I've got AFE air cleaner on now for a year.I also noticed that the muffler is as quiet as the old muffler.I didn't notice a fuel mileage gain as to today I had to go somewhere and put 117 miles on and only got 18.4 where as the same trip with old muffler I got 20.7 mpg. I've got a 2011 suburban w/3:42 gears which gives me low RPM's. Don't understand why because I put one of these on my 2500 pickup with same Engine but w/3.73 gear's