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.
Bought and installed these original 40 series mufflers on my 2001 monte carlo. It makes a great roaring sound that's controlled as per the throttle response. I can take off with easy acceleration and it makes a noticeable sound (roar) I slam the pedal to the metal and it gets much louder which is exactly the type of sound how and when I wanted. No interior drone. So this was done on my stock everything v6 3.8L engine. Now i can imagine the sound from these mufflers onna v8