I linked a site that had downloaded maps awhile back, try search. The link is in a thread in the "Tech" or "Accessories and Mods" forum. You might also just ask for a loaner map in "Tech" too. Getting a loaner mapped worked fine for me. I don't think that having it dyno tuned would be worth the extra loot. I would try any dyno'd map for an 800 regardless of exhaust. The maps on the PowerCommander site sucked for me, btw.