I too will be going widebody, but this will be one of the very last things I do. If you go with fender flares, have them done custom by a bodyshop, and make sure you tell them you want sheet metal and fiberglass grafted to the car... If they just fit aftermarket flares on, and fill it in with fiberglass, you are going to get cracks all in your paint. Widebody looks fantastic, but if you go w/ a non wide front bumper and rear bumper, then fit fender flares on, it will look very curvey from the front or back. This is fine if you want that kind of look; what I plan on doing is getting a wide front bumper, and wide rear bumper, with grafted fender flares. I will most likely get regular side skirts, as if you get the ones from I believe Seidl, they have this sill thing that goes down the whole side of the car, yeah it looks good, but I can almost promise you one of your dopey friends is going to step on it either getting in the car or out of the car... What you can do is get an RS4 Conversion, they look clean and subtly aggressive, the price tag is just shy of 8 grand w/o paint/prep/fitment. If I were you I'd get all of your engine work done before stepping to the body kit.

 

Oh Boy... if you don't get the real wide body- it will look awful most likely. the real wide body is like 8 grand in parts.
if you want popping sounds, then get catless dp's with straight pipes all the way back, that will pop and fire will spit out the back. perfect for those import shows, lol.


like the other guys said... chip, full turboback exhaust for power. CF hood, trunk etc and other weight reduction for going faster/quicker if yuo want.
please do a lot more reading and go back like 10 pages and read almost every thread and you will start to understand a little more and see this kind of thread posted every other day.
Good luck!