Well ottp is suppose to be working on my stock ecu right now, because the one they sent with my order for the stage 1 runs too rich, at 1500rpm its -12 stf and 2000rpm its -16, the scanner also said the ecu is from an 07' and I have an 06', probably doesn't make a difference, but for some reason the solus scanner would not get it to relearn, it was "waiting for throttle..." and I did it very correctly with a very knowledgeable person.