As of now, I have the popcharger and nismo exhaust. I want to finish off the flow with the resonated pipes, but do not plan on resetting the ecu.
I have seen some with this set up run pretty lean, likewise others that run normal (ie. Zboater). Help...

Thanks guys and girls

 

All are different, I had Intake/Plenum/Test pipes/y-pipe/exhaust with no reflash and had an AF of 13-13.5

So I would go ahead and do mods then dyno and see what you end up with before you reflash.

 

Thanks for the reply! I thought it might be different from car to car. How long did you wait after doing your breather mods to dyno. If you wait longer does it give the ECU time to adjust on its own somewhat?
Anyone else have any experiences with running lean/or not after three or four intake/exhaust mods?

 

I did a dyno after a while of doing most of them but right after the test pipes, which leaned the car out, I was at 12.5 before that, but I did another one a few months later and not much change.