I have a A4 and have not decided where to run my NOS switch, was going to run it off the pedal, but wasnt sure how much of a problem that would cause out of the hole. I have seen some people run a hand held switch and a few other different setup's. I am just looking for some advice on this and some lessons learned.. Thanks

 

Most run a switch off of the throttle body. Do a quick search and you will see a thread where lots of guys posted up pics on how the mounted it.

 

i mounted mine on the throtle body i'll try to send you a pic soon