Wideband air/fuel gauge kit

[frankolean]

I'm looking to purchase a white band air fuel ratio Gauge kit for tuning purposes On GY6 150cc and other builds that I intend on creating in the near future. My question is this.....where at on line can I purchase a kit for scooters and that is reasonably priced. All all knowledge Givin is greatly appreciated from experience.

[pinkscoot]

Malossi makes one: scooterpartsco.com/malossi/58-malossi-devices/malossi-rapid-sense-system-air-fuel-ratio-meter?zenid=e109497146109c822bbe87c465a84483 and Koso has one kosonorthamerica.com/product/wideband-air-fuel-ratio-meter/ You can find it cheaper elsewhere.