Definately 1.8T. More mods, 500 bucks on a chip gives you 50hp on a first generation 1.8T(1999-01) and around 35hp for a second gen(02-05). Plus it's a turbo, boosting is awesome and they sound ridiculous. Take a listen to mine and tell me what you think. You will notice it's an auto so don't bother telling me. It wasn't my choice, thats why I am selling.
http://youtube.com/watch?v=N9cSBhdFv9s