nice videos!! The unfortunate thing about twins is that cameras cant capture even half of the sound they make in real life. People really dont realize how loud they are until they actually go for a ride in the truck.
yeah its almost instant. btw, you got any pics of your truck? i have a solid axle kit for the front and i think im going to end up with around a 6" lift and i see you have that on your dually. im interested to see what it looks like