I believe that the kit is discontinued. You are going to have to search on the classifieds like ion mentioned, or maybe a junkyard, or something. For the tuning, you may need HP tuners. I believe a member on here just went with the cavy tuning though.
Cleared corners-RF P1 Subs- RF 201S Amp- Memphis Audio 4x6's and 6x9's-JVC Arsenal KD-APD89 Head Unit-front and rear z-spec strut tower brace- KYB GR2 struts- Intrax Springs- Magnaflow Muffler