A well know phenomenon in racing and motorcycles - open pipes (called drag pipes) are loud and help high end rpms and power, but really hurt at the low end. I second a cat back system if you don't like the stock sound.
08 JK 23S - Colorado Jeep Club No. 204
Too much to list - see my profile for details on build
NRA Life member
"It takes a special kind of stupid to believe criminals will follow gun laws."
I do not consider myself a smartass. I point out the obvious, search for the truth, and speak fluent sarcasm. I am, by experience, an accomplished curmudgeon.