X-pipe or true dual??

What should I run.....
x-pipe???
h-pipe???
true dual???

what will sounds deeper and louder on 2 1/2 inch?

I have heard that true dual gets more back presseure. is that true?

Lets hear your thoughts

What do you all think of tailpipe before the back tire? or do you prefer a tailpipe at the bumper area?

I have the X pipe in a 2 1/2 inch system to the back and have a slight drone at 1800-2200, not really too bad. I just turn up the radio! I see no difference in power but overall the exhaust is quieter then the duals I had before. The motor is a 9.0 318 with a small Comp cam. I have a 3 angle valve job and matching springs. Don't expect huge power gains on a small motor. If I build another I'd use the same exhaust! Well, maybe different mufflers though. Look for ones that minimize the drone effect yet still flow.