magnaflow catalytic converter california

hey guys whats up, I trying to pass smog here in Ca with my LT's(no need to tell me I cant have them cus they move the cats I KNOW) I have 200 cells slp cats on there and as far as the sniffer goes I am passing everything but the NOX at 15mph max is 419PPH I hit 550PPH I am 90% sure that the 400 cell magnaflow catalytic converter california sure pass me ,has anyone use this cats before, and do you think it will help me pass the sinffer, note two years ago i had mac mid-leths with Random 300 cells cats on there with the enige missfireing and the SES light on and I passed my nox was 180PPH with a 419PHH max as well?????:think: