Audi A4 (Auto) 2003 upgrade?
 

I was wondering what I could do to my car to make it go fast?
I was thinking about aftermarket turbos but thats not gonna happen....
any alternatives??
Performance Chips maybe??

And guys honestly how much hp can I get my car up to with these upgrades??
(My friend recently got a G35 and has been bragging about it lately =/

My budget can be anywhere but nothing to godly expensive...

Gotta tell us a LOT more, like which engine do you have? Quattro or FWD? Budget? Suffice to say, if you have a V6, you'll need a supercharger to hang with a G35. Nothing else will get you there (possibly nitrous if you want that route). If you have a 2.0T then you can smoke him easily with some well-placed mods.

If you have a 1.8t, a chipped ecu will make a noticeable difference (+30hp, +40ftlb) and will cost $400-$600dollars from most companies. If you want anything more than that, and you will have to swap turbos and spend a few thousand $.