I have LT headers off road X no resonators and Roush AB. It is ungodly loud. Sometimes I like it sometimes I hate it.
http://m.youtube.com/watch?v=VXzgS7hXevI
HOOOLLY SHHIIIIIIIIT LOL essentially straight piped.
I'm scared to do o/r because I'm currently mufferless... will leave the resonators in though.