i'm sure it'll free up some power of you raccord but it might give you some electrical faults (which you can cure with a programmed signal sent to the O2 sensor)
i joined him at 4:30 and he told me about it. he even took my vitz for a run.
as far as hash has told me the light doesn't come on but worst case the signal can be altered from the O2 sensor (that's why i spoke to kkoool about it before i did it, and he'll be able to replicate a "good" signal if needed)
slow down you are causing the car to distort with frictino/speed! LOL!