What y'all hearing right now

Jake sounds like Cummins, 3406 don't usually stutter like that, straight pipes are different I suppose, but yeah it sounds nice but he can't be that heavy
Straight pipes a 3406 will make a jake bark. I agree he isn't that heavy, the stacks are cleaning up soon after the upshift. If the load had some weight it would take a bit to clean up, I would think.