passing smog
 

my new eg hatch, is not passing smog, 209xxx on it would be the problem i assume, im going to slap on my obd2 gsr cat (if it fits) taht has 55k on it, if that doesnt fit i'll put my 144xxx cat from my Si stock exhaust... will using a afc to lean it out a bit help pass smog? high octane or low octane? race gas what should i use any hlep appreciated.

Re:passing smog
 

you should pop a newer d in there. i know where you can get a ZC for 50$

Re:passing smog
 

if your in socal, you can borrow my extra cx exhaust mani/cat. donald and i both used it to run 2 cats to pass smog. also, let your car get very warm before going.

Re:passing smog
 

there it is, I have an HF cat/dp/header that I keep around just because. I would definitely say use two cats.

Re:passing smog
 

Also just a basic tune up will help oil change,plugs, and cleaning the throttle body. Did it not pass really bad.

Re:passing smog
 

damnit im norcal, but i may be able tog et my hands on one of those headers.. but leaning it out with the AFC will help right?... and i will do all the tune up bullshit, how do you think racegas would affect it? what timing should i run? stock advanced or retarded? what about intake? should i put a new filter in there or attempt to clean it?

Re:passing smog
 

i didn`t even have a filter in my intake box when i smog it.
use two cat, put 87 gas set stock timing