I have a 5.0HO swapped into my CJ-7 Jeep. I'm running BBK headers to dual 2 1/4" exhaust through 3 chamber flowmasters. No balance tube. It sounds like a normal V-8. I want that deep throaty mustang sound. What am I missing? Do I need an X-pipe? Different type of muffler? Is it because there're no cats in my system?