Looking to buy 2004 Tiburon 2.0

Like the title said I looking to buy a tiburon 4 cyl 2.0 automatic. Is there anything special to look at problem Etc. And I know the car is not that fast but what kind of mods do you guys recommend to start with CAI, Exhaust, ECU and if yes is there any place in Canada to order stuff for that car.

Thank for the help

Steve