quick LT1 gearing ?
GU2=2.73
GU5=3.23
Also, on your gear selector, if you have a 1st gear slot, you have 3.23's, if not, youve got 2.73's. And yes, 3.73's are what people normally get for A4 car that is somewhat modded.
( it had 2.73s stock
) Im sure i'll luv em 

