TylerAt4

Mine will be here on Monday, can’t wait to turn off the DFM. I hope it’s not too buggy

My 2020 AT4 has them on all 4 doors

Right, that is really what is holding me off right now. Seems silly a 1/3 of the cost is the tune. Hopefully someone can come out with some better options.

So I’ve had my AT4 for a couple of months now coming from a tuned and deleted LML Duramax. I’m missing the power, has anyone supercharged their 2020 6.2 yet? I’ve done a little research and realize that the pro hanger kit has been released but haven’t read any reviews of any installs.

I’m interested in this as well. My new at4 looks to have a pretty good rake to it.

I have a 20 AT4 6.2L that I just did the Borla type S on and I love it. Very aggressive cold start but mellows out nicely when the truck warms up. I was really worried about the drone on the highway coming from a straight piped Duramax. But at highway cruising speeds you can’t tell it’s not the factory exhaust so I am very happy with that. When you hammer on it it wakes up and sounds like a drag car so it’s really the best of both worlds in my opinion. The one thing I don’t like about it is cruising around say 50mph or less it sounds like crap when the DFM kicks in, not a fan of that but I’m sure all after market exhaust are going to have that problem.