Exhaust Isn't Loud Enough!!

An off road H-pipe would be even louder than the X but you will get a little more power out of the X.I myself have a 98 Gt and i noticed it wasnt loud enough either with just flows.I cut my tailpipes off and dumped the flows, sounds nice, but im probably losing a little bit cause of less backpressure.
 
o/r is way louder then catted bro! my hommie has a 98 gt with o/r h and i have o/r x and mine is way louder then his! but i also have a ton more mods then him but x should give you more hp then a h......... i love bbk flows like a champ...
 
I've got Flowmaster 40's with a magnaflow x-pipe on my 96 GT and it's okay but still not loud enough. If you have an automatic you can't use BBK long tube headers. I believe hooker makes some however.