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Personally i like the sound of true duals better, though a crossover pipe will help with low end torque, exhaust scavaging and mellowing out the exhaust tone, an "X" pipe will do those things far better than a "H" pipe will.
I guess I could make an x pipe, not a big deal. I run 1 foot glass packs and they are 3 inch through the middle so they are pretty loud, they could be toned down a little.
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