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      07-09-2013, 11:53 PM   #53
buster84
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Drives: 2009 335I X-Drive E90
Join Date: Nov 2012
Location: Orlando

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Quote:
Originally Posted by MSimeon View Post
Is it necessary to revert back to map 0 for a smog test? I'm on map 2, but other than that I'm totally stock. I know it's easy to go back to map 0, but I'm just curious if it would pass while on a performance map.
I don't see why not. I used to own a 600hp mustang and since it was highly modified with upgraded superchargers, engine mods ect... I has a custom tune on the car.

I never had issues passing smog in california. Just as long as i had the cats on i would pass. A performance tune wouldn't stop you from passing, its the A/F ratio and your cats that could do that. Or if you had a faulty 02 sensor. You should be just fine with your tune, plus smog doesnt get into boost anyways.
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