What year is your car?? I have a 2001 1.8t with the 150 hp. It made a world of a diffrence when i got my APR chip put in. It gives something like 45-50 hp and same with Torque. A couple of chip makers are GIAC, APR and Upsolute. I would highly recomend APR. I have two programs with the chip. the 93 octane program and a stock program i can use when the weather is bad and when i go into the dealer. Also a front mounted intercooler isn't a bad idea but isn't needed. It will improve the power some but is more for just keeping the turbo cooler. I might get one someday when i have the extra money.
Thanks man for your opinion on the intercooler. I'm definitely not gonna get it anytime soon. I was thinking about getting a chip from Neuspeed (its $200) but the different modes on the APR sound good. What's the APR site? By the way, my car is a 2002.