I just installed a JHM short shift kit and linkage upgrade in my A4. It's tuned with APR software, larger fuel injectors, test pipe, custom exhaust, methanol injection, front mount intercooler, plus a few other things...
I hang out with some other Audi/VW folks from around Central Florida. We love taking trips around Lake County. Lots of hills and twisties. There's a German bakery in Yalaha that's the destination sometimes.
I haven't done any official events, but I'd like to. A bunch of us did go to the 1/4 mile track in Bithlo for an embarrassing night of burned clutched and brakes.
There's a guy in Jax with an awesome A4 - upgraded turbo, etc. David Umpleby.