everything he ^ said is true.

1. there's no way you can even come close to an sti or an evo with just the mods you have listed on a 1.8t. i have an 01 a4 with giac-x, n75 rave valve, frontmount, ect. and there's no way it's close to an sti or evo.

2. turbo's i agree the ko4 is about the same price as one of the eliminator's and with the ko4 you max around 260 to the crank if your lucky. with one of the elminators for not that much more you can get alot closer to 300. ive heard the ko4 is more reliable but as long as your capable of figuring out and fixing little things youlle be fine with the eliminator kit's.

really depends on what your looking for. 4 quick reliable cheaper dd, then just go chip and supporting mods, but if you really want power look into the eliminator turbo's on apt.