Is there a key like I have read that is used when you take out the baffle removedYes you need the dealer to install ithe map (at least I did, it may be possible but I didn't know how). I had my Termi before I even had my bike, which I picked up by trailer, so I had it installed (flashed) before I left. I installed the termi at home as soon as it was off the trailer, so I never had to run one without the other. (It also runs "much better" with the DB killer removed )