It's not wise to flash someone elses tune to your vehicle, and with HPT it would just cost you another 100 bucks.
Your car doesnt really need much tuning at all, a intake and headers don't require a tune but you do need one to remove the egr and cat codes. Your tuner should be able to adjust the Power enrichment tables if need be, atleast set the PE to 35% throttle postion instead of the factory 80-90%. He can adjust cruising timing if needed aswell but otherwise it should run great on factory WOT timing and factory air fuel ratio setting as they are already semi rich.