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Old 01-21-2016, 12:31 AM   #1
HAMBO
 
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List of CARB Approved Camaro Mods

I’ve noticed a few people asking for “is there a CARB-legal version of mod X?” or "is replacing part Y CARB-legal?". I’ve asked those questions a few times myself. Since CARB doesn’t let you search their aftermarket parts database by car model, it’s hard to figure out what’s been approved in California for the 5th gen Camaro specifically. Clearly there are plenty of mods to do out there that aren't CARB compliant (many of which you probably wouldn’t get busted for, or that are legal for “off-road use only”), and plenty of threads about how to make mods hard to detect or how to swap back to stock before smog check, but for anyone interested in finding stuff that is truly CARB legal, I thought it might be helpful to prepare a thread of CA-legal mods. I had already researched a bunch of these over the past while, so figured I would share them in case they are helpful to anyone.

After doing some digging, here are the things I’ve found that are certified legal in CA. Please note some of these are tied to specific model years. Not really sure what that implies for later model years (since nothing much has changed from what I understand).

Cold Air Intakes

Volant - for V6 only: http://arb.ca.gov/msprog/aftermkt/de...eo/D-526-7.pdf

AEM Inductions & AirAid – True CAI for V6 only, with some strange ‘air filter and tube’ combo for the SS http://arb.ca.gov/msprog/aftermkt/de...o/D-670-20.pdf http://arb.ca.gov/msprog/aftermkt/de...o/D-609-11.pdf

K&N – True CAIs for the V6 and ZL1 only, same type of filter and tube thing for the SS: http://arb.ca.gov/msprog/aftermkt/de...o/D-269-49.pdf

Throttle Body

JET performance: http://arb.ca.gov/msprog/aftermkt/de...o/D-234-10.pdf

There are a bunch of throttle body boosters / spacers that are CARB approved, but from I understand those don’t really add any power so I’ve not bothered to list them.

Intake Manifold

LSXR:http://arb.ca.gov/msprog/aftermkt/de...eo/D-279-9.pdf

Superchargers

Magnuson: http://arb.ca.gov/msprog/aftermkt/de...o/D-488-17.pdf and http://arb.ca.gov/msprog/aftermkt/de...o/D-488-21.pdf

SLP: http://arb.ca.gov/msprog/aftermkt/de...o/D-187-21.pdf

Whipple: http://arb.ca.gov/msprog/aftermkt/de...o/D-231-32.pdf

E-Force: http://arb.ca.gov/msprog/aftermkt/de...o/D-215-73.pdf

Kenne Bell: http://arb.ca.gov/msprog/aftermkt/de...o/D-271-27.pdf

Turbochargers

Turbonetics stage 1: http://arb.ca.gov/msprog/aftermkt/devices/eo/D-99-7.pdf and http://arb.ca.gov/msprog/aftermkt/devices/eo/D-99-8.pdf

Heads

TrickFlow: http://arb.ca.gov/msprog/aftermkt/devices/eo/D-747.pdf

Rocker Arms

SLP: http://arb.ca.gov/msprog/aftermkt/de...o/D-187-20.pdf

Exhaust Headers

ARH shorties: http://arb.ca.gov/msprog/aftermkt/devices/eo/D-693.pdf

JBA shorties: http://arb.ca.gov/msprog/aftermkt/de...eo/D-57-25.pdf

Flowmaster shorties: http://arb.ca.gov/msprog/aftermkt/devices/eo/D-698.pdf

Gibson Performance shorties: http://arb.ca.gov/msprog/aftermkt/de...o/D-411-11.pdf

Gears

SO, I don’t really understand how swapping gears impacts emissions (if someone does, please explain). There could be an argument that they don’t, and hence don’t need approval (since CARB is meant to control products that are ‘before the catalytic converter and affect emissions’). That said, the GM 3.91 gears are CARB certified. I’m not sure why GM would have gone to the trouble and cost of certifying them if they didn’t have to, but who knows.

GMPP: http://arb.ca.gov/msprog/aftermkt/de...o/D-126-35.pdf

Tuning / Other

Range AFM Plus: http://arb.ca.gov/msprog/aftermkt/devices/eo/D-751.pdf

Hypertech tuning device: http://arb.ca.gov/msprog/aftermkt/de...o/D-260-15.pdf

Superchips Flashpaq: http://arb.ca.gov/msprog/aftermkt/de...o/D-330-15.pdf

From what I understand, things like suspension changes, wheels, tires, anything related to exhaust but behind the converter (and theoretically anything that can’t impact emissions) doesn’t require CARB certification. Neither does wear and tear stuff like replacement air filters, spark plugs or wires.

Please add to the list if you know of more things!
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Last edited by HAMBO; 03-28-2016 at 06:09 PM.
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Old 01-21-2016, 09:38 AM   #2
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nice list - I use Volant in all my vehicles for just that reason. Comes with a CARB compliant sticker you can affix close to the CAI...
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Old 01-21-2016, 10:13 AM   #3
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I have Doug Thorley Shorty Headers on my Camaro. This sucks, I don't want to remove them just to pass the Smog Test. I hope a Star Center doesn't make a big deal about them since ARH is legal and they have the same principle.

I'm going to order an aftermarket CARB legal Intake so I can pass that part. I currently have a long-tube INJEN which I like and I don't like anyways since it goes to close to the ground near tire-well.

I sure hope Doug Thorley can push to get theirs CARB LEGAL before I need to smog in May.
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Old 01-21-2016, 11:05 AM   #4
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I have Doug Thorley Shorty Headers on my Camaro. This sucks, I don't want to remove them just to pass the Smog Test. I hope a Star Center doesn't make a big deal about them since ARH is legal and they have the same principle.

I'm going to order an aftermarket CARB legal Intake so I can pass that part. I currently have a long-tube INJEN which I like and I don't like anyways since it goes to close to the ground near tire-well.

I sure hope Doug Thorley can push to get theirs CARB LEGAL before I need to smog in May.
all the smog places do is 'plug and play' - and visual inspection. as long as you don't throw any codes, I'm pretty sure you'll be fine.
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Old 01-21-2016, 02:22 PM   #5
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all the smog places do is 'plug and play' - and visual inspection. as long as you don't throw any codes, I'm pretty sure you'll be fine.
Just point to doug headers number. I would bet using the number from doug headers most shops would not know any difference between doug thorley or doug headers and there would be no issues.
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Old 01-24-2016, 12:56 AM   #6
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Hambo,

Hats off to you for doing the leg work. You just helped a lot of people.
I think Kenne Bell has a Carb approved supercharger for Camaro also;

http://arb.ca.gov/msprog/aftermkt/de...o/D-271-23.pdf

Last edited by Dlsbobby; 01-24-2016 at 12:25 PM.
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Old 01-26-2016, 03:47 PM   #7
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Hambo,

Hats off to you for doing the leg work. You just helped a lot of people.
I think Kenne Bell has a Carb approved supercharger for Camaro also;

http://arb.ca.gov/msprog/aftermkt/de...o/D-271-23.pdf
Thanks!

Great, thanks for the link. I'll add to the original post.
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Old 01-26-2016, 08:17 PM   #8
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Hambo , good thing they don't worry about the gears regarding the CARB thing
Because if they ever come up with that , ( like they do in Europe ) the days with cars that get bigger wheels , wider wheels and or tires will be a thing off the past , for the very same reason as switching the gears , different thing , same result
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Old 01-27-2016, 09:25 AM   #9
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Hambo , good thing they don't worry about the gears regarding the CARB thing
Because if they ever come up with that , ( like they do in Europe ) the days with cars that get bigger wheels , wider wheels and or tires will be a thing off the past , for the very same reason as switching the gears , different thing , same result
CARB stands for California Air Restrictions Board - only monitors emissions controls and issues. Gears would have nothing to do with air.
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Old 01-31-2016, 10:11 PM   #10
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Updated to include Flowmaster shorty headers.
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Old 02-11-2016, 11:30 AM   #11
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I just installed this CARB compliant K&N Air Intake system: http://www.knfilters.com/search/prod...x?prod=57-3074

Can anyone recommend the best CARB compliant headers?

What are the expected/reported performance gains from the headers?

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Old 02-11-2016, 11:38 AM   #12
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Regarding the gears, theoretically, if you are crusing down the freeway at 70 in 6th gear with 3.43's you're pulling 1700 rpm's or something. You switch to 3.91's and you're pulling 2100 rpm's at the same speed. You are producing more emissions since you are at a higher rpm, so gears do in fact effect emissions. It's one reason why cars these days have such tall overdrives/double overdrives, not for "driver comfort". [those numbers are off the top of my head, but you get the idea]

That being said, not sure if CARB cares about that or not. But just wanted to point out that gears can effect emissions. Do they effect them that much? No, but still I could see the EPA caring about that to some degree
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Old 02-11-2016, 12:07 PM   #13
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Regarding the gears, theoretically, if you are crusing down the freeway at 70 in 6th gear with 3.43's you're pulling 1700 rpm's or something. You switch to 3.91's and you're pulling 2100 rpm's at the same speed. You are producing more emissions since you are at a higher rpm, so gears do in fact effect emissions. It's one reason why cars these days have such tall overdrives/double overdrives, not for "driver comfort". [those numbers are off the top of my head, but you get the idea]

That being said, not sure if CARB cares about that or not. But just wanted to point out that gears can effect emissions. Do they effect them that much? No, but still I could see the EPA caring about that to some degree
Interesting. I am also guessing, and this is just a guess, that part of the issue may be that new gears require a new tune (if only for the speedometer). I think any part that requires a new tune may need a CARB E.O.
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Old 02-11-2016, 12:10 PM   #14
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Originally Posted by 2Intense View Post
I just installed this CARB compliant K&N Air Intake system: http://www.knfilters.com/search/prod...x?prod=57-3074

Can anyone recommend the best CARB compliant headers?

What are the expected/reported performance gains from the headers?

Cool. How do you like the tube/filter combo? Did you notice any difference?

For headers, only the shorties above are CARB compliant, and from what I've heard shorties in general don't offer any meaningful gains vs stock for an SS. For what it's worth I've heard ARH products are very high quality, and that their shorties are better quality than others.
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