Am I in the right spot? Stacks!

[Swaggs]

So, I am about to do a single 6 inch stack (slant cut, about level with the cab top) and my only concern is if the exhaust will come in the cab with the windows down. I know that when you have garbage, paper, cans, whatever in the bed when your driving it all tends to come in the rear slider, and am hoping that the exhaust wont do the same.. can anyone enlighten me? Cause I love rolling with windows down and slider open