So l am buying a 2008 Hyundai Tibroun GT V6 this weekend and wanted to know what things l could do to make it faster. l read that they did not have much horsepower and really was not as fast. So l was wondering what things l could do to make it really move. Im a girl by the way.

The Tiburon has lots if supercharger kits online.
Very few turbo kits for the V6 version.

The Superchargers will add 100HP.
Performance chip, exhaust system, and Cold Air or Short Ram Intake are cheaper upgrades that all add 8-20HP.

Yes, you can make the Tib faster. Like C7S said. There are sites you can use to get some performance parts.
http://importshark.com/allperformance/
http://injectedperformance.com/ec/category.aspx?VID=103
http://fasthyundai.com/
and more l can not think of now.
Plus these guys can help as well.
http://hyundaiforum.com/
http://elantragtclub.tripod.com/elantra/
http://elantraxd.com/?
Good Luck!