fender headers

well at the track i run in my class i dont need mufflers so i run just headers.
What most people do is run it the way the factory super stock cars had it.
You use the original header flanges as "cut-outs" and cut the inner side of the collector and run the full length exhaust from the inner cutout of the collector.that way you can uncork it and run it open headers or run it full length for the street.
watch video...it explains the factory cars and the headers

http://ca.youtube.com/watch?v=4ji93WHv79E