Hrm. So, this works for boosted Protege's (MSP), but kinda curious if it would work with N/A Protege's for light tuning. I would assume you wouldn't need a voltage clamp, either, given that that only functions under boost, which an N/A car would very, very rarely see.

What with being naturally aspirated and all.
The other two problems I've seen for this are:
a) The comp not functioning under open loop operation.
b) The ECU relearning around the new device.
Out of curiosity, does it function on both of those situations? I couldn't see how it would work under open loop, as once you hit the loop, it just ignores the sensors totally, effectivly jamming it's fingers in its electronic ears and drowning out what it's hearing from said sensors with an obnoxious chant of "La, la, la, I CAN'T HEEEAAAR YOU!", for all intensive purposes.
I've obviously not yet slept, but I'm at work... I think I need sleep. *yawns* Just curious. =)