Problem (Windows won't roll down)
 

Last night I put on the F-sport intake and after I reconneceted the battery my windows will not roll down. Has anybody else run into this problem? Id like to fix this with out going into dealership.

There are around 5000 threads on this. Roll the windows up and down(not using the drivers controls) and it should work.

Hold down each window button for about 5 seconds and up for about 5 seconds, this will do the trick

The answer to this question, and many others, is in the 2IS FAQ thread stickied at the top of the forum.