o well ???thanks for clearing that up,but you never know who is watching in the background 
I just received an answer back from them already.
"A 2-1 is obviously the best performing pipe on the market for any motorcycle setup. However, If you do want to keep your "Dual" look then the Power Duals are definitely the way to go. They will help out with performance on the bottom end. Results have shown that with the Power Duals and Monster Oval Slip-ons combination will get about a 10% gains in both hp and tq. As you noted, The Dresser Duals (2-2) are not so much a performance oriented setup but will achieve the "True dual, dual cylinder" sound."
Of course, I wrote back again just now to ask if there would be any expected gain whatsoever from stock non-cat to their Power Duals. Why do I feel that the people who should be in touch with this information (V&H) won't really know enough to give an honest answer to that question? We may give these companies more credit than they deserve. I have a feeling that all of us on this forum probably understand that question fully and the person I sent this to won't really understand what the question is really asking and I'll get a vague answer telling me some other small percentage gain, along with using their mufflers.