I've got a '99 S10. I'm thinkin about changing exhaust. Right now I've got a 40 Series Flowmaster. Sounds cool. Had a glassplack sounded to import. But I'm thinking of going to a Gibson or Dynomax exhaust. Does anybody have a Gibson or Dynomax muffler. What does it sound like. Trying get some input before I change if I decide to.