This is a complete brand new kit right from Japan. This setup sold for around $300 before paying to have it shipped here. I was going to use it on my bike but have decided to go a different direction. This is supposedly for 12v style heads. I imagine that it also fits all the Lifan heads and such. It will also work on the 6v engines if you buy the appropriate plate that bolts to the head. Nice setup. I'll let it go for $170 shipped to the US.