+1 Tom's tune. The SCT Xcal3 is the one you want. You can PM 1turbofocus (Tom) if you are interested in his tuning services.
Do you have a auto or manual trans? The auto trans will bennifit more from the tune, but thats not to say the manual trans won't bennifit form it either. I only have a CAI as of this moment, and feel if my tune is deffinately worth the money (auto trans). Also having FREE updated tunes for N/A add-ons will be worth every penny I spent on the tune.
Team Duratec #23
Official SES Registry #49
Tom's Tune, DDMTUNING 5000k HI/LO & FOGS, Switchback LED turn signals, AR103's gapped .54, FSWerks CAI. more to come