I have the same feeling with my 2010 FLHTK. From the reading I have done it is due to the cat. converter restriction in the head pipe and the lean tune due to EPA requirements. Recommendations are to remove the stock and add aftermarket complete exhaust, high flow air cleaner and a fuel tuner like a Power Commander V. I priced that out and you will spend $1,500 to $2,300 depending on what your tastes is and how big your wallet is. Mine is small so my bike is still stock One summer and 18k miles so I guess I can live with it. Good luck. Post back if you do any modifications.