basically what i mean is doesnt the box provide the same function as the window switch with the soft touch rev control function?, if not does the digital 6 box have it?, which would be the better buy? thanx

 

I know for a fact the MSD 6AL don't have a window switch. I am almost postive the Digtal 6 don't either. IMO get the digital 6 it has nitrous retard all ready and you don't have to use chips to adj. the rev limiter. On a A4 car you don't really need a window switch unless you don't want to spray threw the shifts.

Only bad thing about spaying threw the shifts are it will shorten the life a stock trans.