Dayton brand 2nd owner I bought it from a mobile dyno outfit that closed up. I've tuned 99% of my racebikes and countless streetbikes with this. No, it's not the latest greatest Dynojet, but it reads about 5hp difference than a fellow shop that has a Dynojet. It comes with everything needed to start tuning including computers. You will need your own fans. It has the Latest upgrades from Dayton installed as well. The absolute ONLY reason I am selling is because we have to upgrade to a unit that will accept Atv/UTV. I have owned it for 5 trouble free years now. $5k and you need to bring a trailer. For pics please text me or email me. 850-637-5838 [email protected]