Do you not need to have the bazzaz z-fi (similar to powercommander) unit to connect the Z-afm module to? Your a little bit vague with what you actually are selling! Are your selling the complete bazzaz z-fi unit with the a-fm unit included?
Yup, that's the equivilant of the power commander autotune!(finishing fitting one to my bike over the weekend) In order for this to be used the buyer would require to either have or additionally purchase the earlier mentioned bazzaz fuelling system z-fi (few versions availible from basic fuel only to fuel/traction control). This unit try's to adjust the fuel map stored in z-fi while you are riding in order to achieve specified air/fuel ratio's by taking readings from the gases within the exhaust using the oxygen probe. It tries to do what a dyno tuner does but in the real world, don't get me wrong a tuner has the use of the dyno to check what the adjustments make to the power curve but the rider only has the feel of the bike to go by and can be a bit of a comprimise and may not get the max figures out of the bike but should make a better fuel map than just downloading a generic map from the manufacturer! Hope that clears up what the unit is for and what you actually have for sale.