Not sure where you live, but up around Sacramento when I've brought my car in the first thing the guy did was a visual and if headers are on his list he will find them. Talk to some of the local car clubs about what their guy/gal is looking for during an inspection. Good luck.

Before spending the big bucks, check with a local exhaust shop, I kind of recall asking my exhaust guy about headers for my 2010 and I think he said shorty headers will pass because they don't interfere with the CATS, but I would check into it to be safe.

Doug thorleys forget it. Just failed with doug thorleys. Buying doug headers which have an EO number then should be good. California is such a croc of shit for us muscle car guys.

The shop guy is pretty cool. Issue is bar just busted them a month ago over similar situation. Cant blame the guy based on bars fines. He said everything else is good. I will find out tomorrow. Just put on JBA headers and going back in tomorrow.

BTW if you are in Brentwood area Brentwood mufflers rocks. The put on my shortie headers for 380. Not bad if you take into account In running a edelbrock supercharger and the have to come out the bottom. Gut spent most of the day changing out doug thorleys for JBA's

Thanks for the tip! BTW, did you have / notice any gains from adding the JBA shorties?

All passed with smog. Glad that is over for another 2 years. The good part is smog does not detect custom tune. On performance not sure yet. I really do not expect much difference between the doug thorleys or JBA's but will see.

Added some tuning options to the bottom of the list on page 1

i find it kind of hilarious that you can put on a supercharger but not a cai.

You can also go crazy with any 78 and older(i believe) cars as much as you want, no smog.

Ya, seems odd..I believe the CAI is because the V8 Camaro stock intake contains a carbon sheet of some sort designed to capture emissions and thus qualifies as a "pollution control device", and CARB rule is that once something is considered a Pollution Control Device you can't remove it or modify it unless the replacement works as effectively in controlling emissions (no aftermarket CAI does because apparently no one can affordably get access to the same carbon material GM used in the stock CAI since the company that makes it has an exclusive patent).

For vehicles I believe it's pre 1976 that is exempt from smog check, but not from emissions laws (technically still supposed to follow the rules, just no mandated check every two years). Pre 1967 are totally exempt.

This is probably the worst and most immature thing you can do. You're going to deliberately go out of your way to make someone look bad, possibly lose their job, and lose business because what? They did their job correctly? Get mad at the state, not the inspector. Gotta think before you act, the inspector has to fail those cars or risk losing his license, job, or paying a hefty fine, and you're going to try to cost him his job if he does what he is supposed to. If you go in for an inspection, his job is to do the inspection, not to hit pass pass pass. Driving is a privilege, not a right.

And before you say something like, "Oh, well he should at least tell you first before he fails you for modifications"

He can't, or else he can still get a ticket, lose his job, lose his license.

Think twice before you do a shitty thing like that.

Wrong, shorty headers are the only type of headers that CARB will approve, but that doesn't mean that all shorty headers are automatically approved. They still require EO numbers to pass a smog, because some manufacturers will put the O2 sensor on only one cylinder's pipe or make the pipes bigger which is a no-no to CA.

Are you required to go to a STAR? Not that it makes a difference, but a STAR station is more likely to catch things like that. If it is only pending, it would still fail if they do their job correctly.

Except than any smog inspector who actually knows how to do their job has to look up the EO number and make sure it matches the part number, manufacturer, your year, make, model, engine, etc. So that doesn't work most of the time.

This is basically why it would require a CARB number. However, there is not exactly a way for the smog inspector to know the gears are different, so just don't mention it and there won't be a problem.