I started out with my new 2018 107 M-8 Ultra Limited (low).Being a rider of both the Metric and Big Twins. I look at it this way. My Harley is now like this. 72 inch big screen HD TV with surround sound and LED lighting. Nestled in a Lazy Boy chair with onboard massage therapy. I was just about to sell her when the thought came to me. I took my 2018 M-8 replaced the stock cam with the SE power cam. change the exhaust with real clean and I mean real clean header pipes with Tab Performance Slip-On with Zombies and slash cut tips.I drilled and tapped the header pipes so I could use Wide Band Dual O2 Sensors. Got her to breathe better with a Screaming Eagle high flow air cleaner. Then put in the brain to pull it all together. Power commander V with an Auto Tuner. At this point the Dealership is NO HELP !! I called Power Commander and this guy went Virtual Reality through my laptop computer. First installed Map 15-042-023 to bring her live. With the motorcycle on my lift and running he tuned her like Frankenstein's bride. With screams she is alive. No my Harley runs and sounds great and I am glad I kept her. No why want Dealerships work with you to make customers happy without kidnapping them and holding them up for ransom. They will sell you the parts all day but will not work on them or install them ?