Hey,
I have a 05 TT s-line with the 3.2. I want to know what is worth while adding to it, such as CAI, chip, exhaust? What are the brands available for these upgrades? Also, I am interested in upgrading the suspension, what would be my first step? Any light shined on these subjects is greatly appreciated as I am an Audi newbie.

 

Suspension is going to be the most rewarding thing you can do to this car. The 3.2 is pretty much "done" from the factory. There's not a lot of upgrading you can do to it. I'm not even aware of any exhaust options for it, but I may be wrong.

If you lower it be sure to get the K-Mac eccentric bushing kit for it. A half kit for 1" or less and a full kit for more than a 1" of drop. Coil-overs will let you lower it the most. H&R Sport springs will drop it 1.3" front and rear. Upgraded sway bars and good shocks in conjunction with the springs will give you phenomenal handling. The coil-over setup will too if you dial it in right.

 

Got an 05 as well. You should do the wak box and the flapper mod (both free). You can get it chipped which adds about 10-15 hp. Get crazy and add shrick cams (expensive). You can only lower the 3.2 about 1 inch because the oil sump pan is so low. I would just upgrade the rear anti-sway bar to 19mm and get a set of koni or bilstein sport shocks. Good luck. Enjoy the V6!

dale