Wish I could edit my thread title, terrible grammar........ Can't find the edit button anywhere though.
Anyway, This is an early Viper, one piece wing that bolts on from underneath. Definitely not the ultra viper. I am not an electric guy but I did even look at the EVF system, I'll go turbine, it's far less money! If I had the batteries, chargers, etc etc etc already it MIGHT be a consideration but the EVF system is only $50 less than a brand new K45. Just can't see myself spending turbine money for vacuum cleaner internals LOL