I just saw a smoking deal, Enjuku Racing has the AEM UEGO (wideband O2) for under $220 shipped.
It's a very slick unit, fits in a small guage pod. It can even emulate the stock sensor to feed to your ECU so you don't have to weld in a 2nd port if you don't want to. Iirc it can also log to a computer. I've had mine for years and it's great. It was 5-600 back then.
Great deal on wideband sensors
Moderators: charlie, darkducati, andysapp, CodyW