Welcome aboard. Where in Maryland are you?
As Andy suggested, try using the search function. Specifically in the Performance section.
Tough to add 10-20hp without a lot of noise.
Start with an intake - fairly inexpensive, not loud.
Y-pipe - little louder, kind of expensive
Exhaust - little to lot louder, $500-$600
Headers - gutted is cheap, MSDS/SHM - $$$
Good luck!