I am contemplating running single or dual exhaust, what would give me more power? Can I even run dual exhaust with the k5? Would it he hard to run? Would Dual 3" Exhaust be over kill and sound like crap? Maybe Dual 2.5"? Here are my options... Single 3" Exhaust Dual 3" Exhaust Dual 2.5" Exhaust Somthing Else? I will be using Flowmaster Super 44 mufflers most likley.