Wider and stickier tires, like the 225/45-17s that are on STi's and lightweight rims.
Suspension to help with Traction:
-Upgraded Struts/shocks with stiffer springs or Coilovers
-Swaybars
-Endlinks
-Anti-lift Kit
Carbon fiber hood
Carbon fiber trunk lid (if available)
Front Splitter (Downforce)
Rear wing (Downforce)
Lightweight Flywheel, ACT Streetlite Flywheel
Clutch, Exedy or ACT
Lightweight Crank pulley and Alternator pulley
Delta Cam Regrind
Port and Polish
High Compression Pistons
ECU reflash or Piggyback Tuning
All that should improve your times, not sure if that is all, but that includes most of the things that I could think of that increases power, traction, and reduces weight.