All true but the EGR fills the cylanders with a enert gas that is not suppose to effect combustion either way. I should mention its only on part throttle . Emissions aside with lower EGT temps why remove it ? Unless mitsu's don't crack heads like other manufactures LOL . Why not invest in a propane kit for more power ? I for one know Phil could use it .

Just trying to stir the hornets nest up a bit