I was lucky enough to get one of the first AF-XiEd units.
I have been running it for 2 days now and so far I am very happy.
Bike: 2000 R1150GS with air intake sensor thermistor added (generic equiv to Ice Air, Recyclizer, etc, etc.)
XiED setting @7
Yellow Cat code plug (30-87)
Have ridden about 200 miles and noted the following:
Improved very smooth throttle response and less harshness.
Surging is gone.
Increased power at top end - easy to bounce off the rev limiter.
Went from 89 octane to 87 - so far no pinging at 80f temps.
Roll on is improved, even when the rpm is in the basement.
Mileage has not really changed. (I have logged every litre I have ever burned)
Engine idles very smooth and does not hunt up and down as it did before.
Plug color is a nice tan - not white as before.
Very easy plug and play installation.
Change the AFR on the fly, very easy, all you need is a small screwdriver to tiddle a pot - no flea clip to loose.
My feeling is the bike is happier at 14.1 AFR (instead of 14.7) and the bike is much more pleasant to ride. I KNOW this bike as I have had it since 2001 and the odometer presently sits at 245,000 km.
I will be experimenting with lower ratios in the next few weeks, and going on a long trip. Will report my findings as they happen.
NICE WORK ROGER & STEVE!!!!