What exhaust system is better? A large single or true duals with an X crossover?

True duals sound pretty good, but an X pipe is better for performance. Single is crap.What exhaust system is better? A large single or true duals with an X crossover?
It depends on what you are looking for Joel the large single out will give you flow if that is what you wish to achieve if you are seeking good mello sound with rumble duals with flowmaster or dynomax is best also in regard to the X or H pipe depending on manufacturer is inplace to equal out back pressure from each bank of your engine I hope my answer has helped but if i knew what the exhaust was intended for I could give a more specific answer.What exhaust system is better? A large single or true duals with an X crossover?
Stay away from Y, X, and H pipes you'll get unecessary back pressure and it kills the real sound of your block. Straight out of the headers bolt on (don't weld) seperate mufflers with short or no pipe outlets. The longer the pipes the more vibration and wasted flow you get.