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I know its not a A-body, but what would be best for power/toque to economy for my truck? 2005 dakota 4.7L. Would an X pipe to dual mufflers or true dual be better for power and mileage? 4.7L is stock, small diameter headers, throttle body spacer, cold air, and might see one of those superchips.

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...