Does anyone know how to get NO2 levels down to a passable rate? IM gonna try the sea foam stuff tomorrow but i was wondering if anyone has any ideas or alternatives.

 

I highly doubt seafoam will do any good on NOx.

NOx is formed at high temp/press. The best way to limit production of NOx is to limit the combustion temps.
The primary function of the EGR is to reduce the temperature of combustion by introducing low O2 air from the exhaust system into the combustion chamber.

Make sure the EGR system is functioning properly.
If all is well there, then start looking at the catalytic converter.

Obviously boost will increase the combustion temps, and therefore NOx output.

jason