Is the rear o2 sensor connector for a 2003 Evo any different than the IX 06 Evo? I've seen some pictures lately that have been leading me to question they are.

The 2003 O2 sensor I have has a "Flat" plug if that helps any.

I'm having flex fuel setup made for my vehicle so I need to know this since my rear o2 sensor is from an 03 but my new wiring harness is from an 06. Just trying to save myself the trouble of ripping my arm rest out again.

I have this thread going in the advanced section as well but I'm hoping I'll get a response here faster...

 

I find it hard to believe that nobody has an answer to this..

 

Your modlist is quite detailed. Excellent kit I might add(except for the oil cap....JK). However, After reading through the list twice I failed to find mention of an IC upgrade. Was this a conscious omission on your part? Or, are you still rocking the stock heat exchanger?

Sorry for the OT.