I installed my Thundermax tuner on my 09 CVO Roadglide a couple of weeks ago. The guys at Thundermax shipped the tuner with a map for my bike, great people to deal with and at first flush it looked like no big deal to install it. Once that's done I thought it would "Tune" itself, all I had ta do was ride the bike and it would learn and tune. Well that ain't excaly the way it works. The bike popped on decel badly and backfired on me a few times when slow rolling in a parking lot. I read the directions, adjusted the basic settings and it seems to be fine now. I still have a few questions though.........first, what happened to my reseve fuel gauge? I had a gauge that told he how many miles I had left on my tank and it's gone! Second, the bike seems to miss a little and surge when the RPM is around 2,000 rpms, will this go away as the moduel learns? Third, the bike also seems to pop once in a while if you rack the throttle a little when shifting or down shifting, maybe I shouldn't be doing that, it's an old habit. Lastly there seems to be a little lag on throttle responce at times, not to say the bike don't respond, it respons well, but sometimes when your shifting easy it feels like there's a little lag there. Any help would be appreciated. I'll be the first to admit, I ain't no computer wiz and all the stuff about filing, saving was confusing to me. There's a darn good chance I did or didn't do something I was suppose to do but I figured you guys know a lot more bout this thing than I do.