If your going to a dyno to tune, you wont want to use a datalogger as its just going to log the narrowband o2 voltage. The dyno should have its own wideband sniffer they can use. Only thing the logger will be helpful with is logging the timing. I have a 2g logger cable/palm but it is currently lent out to another DSMer. Post up on www.sovadsm.com and come to a meet, I know we have a few loggers/cables between the members now.