My new pipe arrived today and my 04B goes to the stealership tomorrow for installation Dyno runs with a SERT and I have a few questions that I would appreciate some help with. First, my last pipes were D&D slash cut slipons. I bought the bike with 2500 miles on it and it had the mapping set to match the pipes but friends noticed that it was getting louder when I reached 6K so here is my question: When the fiberglass burns out of the baffles, could it change the fuel/air mixture enough to create a lean condition? I plan on repacking the baffle when it's time but I'm curious as to how critical these maps really are? I bought the upswept Vance and Hines two into one and the first thing I'm going to do is take the baffle out and apply some antiseize (sp?) where ever rust will develop inside the pipe because that's why I had to buy the pipe, I couldn't get the baffles out of the slipons because they were rusted in. Next question, first let me explain that this service manager is the nicest guy I've ever met at a stealership, really high on the people skills and truly seems concerned about what's good for me and my bike so the question is there anything special I should ask him when it comes time for the dyno and setting the map? Should I just ask for maximum horsepower or should I specify smooth through the entire rpm range? This is my first HD and first time I've ever paid for a dyno tuning. Also he told me that the SERT doesn't stay on the bike so I guess I'm just paying for them to use their hardware to adjust the map. Does that sound about right?