Is there a reason why there aren't too many engine mods/performance upgrades for the a5 - particularly the 3.2 FSI??? In a month or two, there should be a flood of these cars in the US, a good market for potential car peformance companies.
I would say partially due to the fact the car is so new that manufactures of after-market parts haven't had time to test their products on the car. I would look for mods to start coming out in middle 2008.