Hondata

So my SI has the following: Injen SRI, DC Race headers, and a full Buddy club pro-spec exhaust (no cats).

Currently i have a strup 90 degree extension for my O2 sensor, but still throw a CEL every now and then from the rear O2 but it resets itself. can the re-flash eliminate or "turn off" the rear ...

so another lil tidbit we we noticed yesterday. When i took it to my buddies Honda shop where he works we hooked it up to the Honda Diagnostics computer,

It showed that Both the short term and long term A/F were running a little rich mostly likely due to the full exhaust and the rear O2 sensor ...

Why would he put the sticker on it? Could it have been swaped with another?

Please excuse my ignorance and possibly obvious question i may ask, as i am new to the Honda tuning world. Had a tuned and modded mustang before so I am not completely retarded on the topics. But these Japaneses cars use completely different techniques.

So i just recently bought a used 2008, SI ...