i have a dyno jet commander V and a auto tune I had it on my 1000 sportsman highlifter it worked very well you can adjust fuel ratios and it will keep the engine in that range I richened mine up to keep the exhaust from melting the plastic I had no plastic melt on the bike not to mention the throttle response was very impressive it can be used on the 1000 and 850 sportsman or scrambler
I sold the bike and bought a rzr (highlifter was to low geared for me and my use) it had only 100 miles on it when I took this off and sold the bike
part #19-019 for commander V
AT-200 AUTO TUNE
had over 700.00 in it when I bought it have all the paper work original boxes and ect. would take 300.00 for it thanks I forget to get on here so just call or text me 660 247 2005