I was thinking about running open headers. The thing is though that before i had a set of pipes fabed up I wanna see how it sounds. How bad would it smell and how many fumes would be coming in if i took off the pipes right where the headers end. I know that at a stnadstill it might be an issue but when i an moving would i be ok? Thanks for the help. Rember this would most likely be only temporary. 79 Jimmy, 5" lift 35 M/T with a 383 puttin out 400hp and 450lb/ft. 4.11s Locked front and back.