Help Me Make My 98 mustang sound like a real mustang

Ok i have a 1998 mustang gt 4.6 ....i know i need dual flowmasters//// but what else can i do to my car to make it sound great adn loud (like a real mustang) it is loud now but not like it should be , any help or opinion is welcome....brand names adn prices if availabe would be great....thanks

1 5/8 BBK Headers, off-road pipe, and 40-series flowmasters.