If you want the power valves to be operational, for electronics you need the RZ cdi box, power valve controller, power valve servo motor, voltage regulator, and the fake battery. You'd probably want the RZ stator and flywheel too. After you get all that stuff and find a place to mount it, then you get to build your wiring harness which is big fun. Like someone else said you have to build exhaust adapters to hook up banshee exhaust too. Then you have the vast selection of exhaust to choose from that actually fits around the valve, Paul Turner mids and Rockets are the two that I know of. I've had both, and I like the Rockets, with the exception of trying to check or change spark plugs, especially when it's hot. It's nice to have now, but was a lot of screwing around.