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Old 06-13-2017, 06:45 AM   #1
btort27
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Default Stage 2+tuned, back to stock to pass smog, do I need another tune?

Ok so if I am at cobb stage 2 and tuned, and I'm in need of a smog. I go back to stock to pass smog. Reinstall my intake, cobb downpipe and exhaust. Will I have to get another tune?
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Old 06-13-2017, 01:22 PM   #2
mrsaturn7085
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Depends on the regulations in your state with regards to what is being checked.
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Old 06-14-2017, 06:33 AM   #3
btort27
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Originally Posted by mrsaturn7085 View Post
Depends on the regulations in your state with regards to what is being checked.
I will be putting everything back to stock except my cobb catback exhaust

I live in california, do I have to unmarry my accessport to get it to pass smog? or can I keep it?



Will I always have to get another tune everytime I get a smog in california?
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Old 06-15-2017, 11:03 AM   #4
Charlie-III
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You should be able to "revert to stock" with stock parts and the CATback, pass smog, reinstall parts, reflash your tune.

Good idea to read the AP manual.

Use a map that fits your parts, typically a CATback can use a stock map.

You should also be fine with the AP installed to go through smog.
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Old 06-15-2017, 02:56 PM   #5
neg_matnik
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Quote:
Originally Posted by btort27 View Post
I will be putting everything back to stock except my cobb catback exhaust

I live in california, do I have to unmarry my accessport to get it to pass smog? or can I keep it?



Will I always have to get another tune everytime I get a smog in california?
I don't know about the AP, but I have passed 3 times (4 years spread) with a RomRaider tune (2006 WRX with a VF43, 3-port EBCS, PW TMIC, stock downpipe, stock airbox).
I have successfully passed both the older test with the sniffer and the newer/latest test that only checks OBD2 readiness monitors.
It's all about readiness monitors; if all relevant monitors are ready/complete the day of the SMOG check, then it's all good.
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