Have a 2011 Nomad and put V&H slip-ons, K&N air filter and a PCV5 (fuel only). Was running ok but not great. Went to an authorized Power Commander dyno shop and had the bike dynoed. Made sure that he mapped both cylinders. What an unbelievable change in performace. The bike doesn't hesitate, shifts smoother, and cruises effortlessly at 75. Best $250.00 I ever spent.