will the car running lean help with emmissions? and what are some things that will help me pass. I live in california, im having 2 new cats welded on to the offroad H-pipe to pass.will replacing the 02 sensors help me pass?

 

Running lean is horrible for your emissions. Stoicometric (spelling?) or 14.7:1 air fuel ratio is the most emission friendly.

 

i agree.....and i would probably change the 02 sensors if you haven't changed them in a while, also change the cap and rotor. screw it just do a whole tune up if ya wan't...its only money right