I have had Dr. Dyno tune my wife's 2008 Road Glide, if you have a chance to have him tune your bike, take it. The man is a genius when it comes to tuning a bike. Gas mileage went up, engine temps went down, horsepower and torque went up. Smooth riding machine. He does his best work with Power Commanders. I have an 09 Ultra I got after he tuned the first bike and I will have him tune this one a.s.a.p.