Hooker Shorty headers, BBK o/r H, and Flowmaster American Thunder catback. Trick Flow heads, B303 cam (mentioned these only because they both make the car sound different). Rev was only to 3,000 rpms, and limiter is 6,500 rpms, so you can imagine how loud she is. Sounds much louder and better in person.
[ame=http://www.youtube.com/watch?v=U8ACgdNZhUk&feature=youtube_gdata_player]89 Notchnack LX Mustang - YouTube[/ame]