Some thoughts about separate duals and "X" pipes. There might be a tiny scavenge effect with the "X" configuration(might). The might be less "bark" in the sound from the "X" configuration. The muffler(or lack of one) will change every thing. Warning: Opinion! I like the pipes to exit the rear. Run the duals over the rear axle, and route one to the passenger side. Use a sheet metal heat shield to protect the MC and the bed. I like the "stock" look of these trucks. I like sneaky trucks. My 2 cents.
