Want to bought the truck in had a flowmaster 40 series muffler and dual tips that run out under the rear bumper. It didn't sound very loud at all so I went with a super 10, And honestly I can't hear any difference between the 40 and 10. Is there an exhaust flap somewhere else besides right where the muffler used to be like further up on the exhaust? I even took out the resonator between the muffler and the factory cats. I miss the real V8 sound, and really want to know how to get it on this truck. I have even contemplated putting glass packs right at the bumper or borla attack mufflers in the same place. Anybody have any suggestions greatly appreciated thanks.