Best setup I’ve seemingly the gmt400s. I have 94 k1500 with stock cats and super 40 with 4x18 tips. I’m thinking of high flow cats with angled 5 inch exhaust will give it a tone like yours
I have a 305 and I’ve been looking everywhere for a nice exhaust setup. I like the way the super 40 sounds on it, it sounds fairly quiet but not too quiet from the video. It just has a nice deep tone until you hit the gas of course. Straight pipes just sounds like tin can clapping and ass farting up and down the road IMO.
Super 40 is definitely better imo. Was gonna put some super 10s on my 97 k2500 454, but decided im going with the super 40s. Like the hum of the 40s better