If anyone in the Dallas / Ft. Worth area is considering this mod, I would like to hook up my data logger to monitor timing advance and o2 voltage for air to fuel measurements.

I'm curious to see if they are just leaning out the fuel / air mixture and increasing timing.

It would also be nice to see if timing is being pulled in taller gears as the load is increased. Some of these "ecu" upgrade companies only lean out the air fuel mixture, which makes the first few gears a little more aggressive, however in taller gears you start to lean out, knock, and down the road "boom".

The only other thing to consider, is it will over ride the ecu's ability to control the drive by wire features. Instead of pulling back timing at WOT, just letting the driver control it better.

I'm curious how this device actually works.

Anyone know?