I have installed this cheap chinese one.
My bike never ran well but runs better since.
I still have troubles on the top end but I cant pin it on this cheap cdi, as it could be a dozen other things.
2007 BMW X-Moto Wind Shield, Rear Rack, Giant Loop Saddle Bag, Heated Grips Hand Guards
1989 TW200 Clarke Tank, DG Exhuast, New header & Carb, K&N Air Filter, pro taper bars and grips