Here are the first hits that come up on a google search...
National Speed Inc.
6779 Gordon Rd.
Wilmington, NC 28411
tel: 910.332.5901
http://www.nationalspeedinc.com/
GodSpeed Auto Salon
2597 Hope Mills Road
Fayetteville, NC 28306-8311
http://www.godspeedautosalon.com/
Maybe someone in the regional part has experience with one of them?