Welcome to the Forum! Now, YFZ450 arms will take some serous fabricating and time. I would not suggest it if you are new to quads. Second there is a guy that goes by the name of AWK on here. He sells amazing rear hydro kit for the blaster that bolts right on. He will probably be along shortly. There is also another guy that makes full sets on bolt on front hydro kits, hopefully he will be along to help you out too.