I bought my 06 Road King used in Oct of 09. I planned to wait about a year before making any modifications and here we are. I have always wanted to at least add slip on mufflers to change the sound from stock. Of course, I am going just a bit farther following the concept of “while I am at it I may as well …...”. Over the last few days I have ordered V & H Monster Ovals, V & H Dresser Dual head pipes, K & N Air Cleaner Kit (larger element), and a Power Commander III-USB. We went to the local dealership and listened to some exhaust/muffler combinations and my Lady (passenger) loved the monster ovals. I will update you with before and after sound bites, pictures, etc after I get everything installed.