Header Question?
Melting Slicks
Joined: Jan 2007
Posts: 3,021
Likes: 133
From: Conejo Valley CA
Yep, bbob67 has it right... that's what I have heard also and this has not stopped me from considering LT headers.
Drifting
Joined: Oct 2004
Posts: 1,633
Likes: 0
From: Fremont/Menlo Park Ca
With a good tune is it possible to pass with no cats... what about high flow cats?
I currently have no cats on my longtube setup... I am not worried about the visual but can i pass the sniffer without cats... i dont think so but its worth asking.
I currently have no cats on my longtube setup... I am not worried about the visual but can i pass the sniffer without cats... i dont think so but its worth asking.
Race Director
Joined: Aug 2001
Posts: 10,783
Likes: 15
From: Hurricane Alley
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
Every state is different. Unfortunatley Cali has some of the most fkd up strict emission laws in the country, so you will not pass, especially with the visual inspection you guys have.
In IL, you can pass with Longtubes on the C5, but you have to have the Rear O2's tuned out (turned off) since all they do is plug in (OBDII) your port no codes and you pass.
Then some of you lucky blokes live in states where there are no emissions laws
In IL, you can pass with Longtubes on the C5, but you have to have the Rear O2's tuned out (turned off) since all they do is plug in (OBDII) your port no codes and you pass.
Then some of you lucky blokes live in states where there are no emissions laws
Team Owner
Joined: Aug 2006
Posts: 30,897
Likes: 45
From: Picking on the weakest kid in the yard.
Why would LT's be illigal in CA? If you have Cats and pass the emissions test, why would they care about the shape of your exhaust manifold? That's pretty stupid. Sounds like an anti hotrod law, not an emissions law.
Race Director
Joined: Apr 2004
Posts: 16,135
Likes: 5
From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
High flow cats should be fine. I am so glad that I don't live in California (and I really love the state, because of the beautiful highways
).
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Burning Brakes
Joined: Mar 2007
Posts: 947
Likes: 1
From: Lower Lake Ca
Everything forward of and including the Cats that is.
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
It's yet another example of a "one size fits all" law there in The People's Republik.
Safety Car
Joined: Jan 2005
Posts: 3,675
Likes: 58
From: Hayward (Bay Area) CA
The "Visual" makes NO sense. If the emissions are Passed, then its just like all the other stock cars. Its not poluting the state anymore than others. I guess, they're just "Dumb Politicians" who just hate, or discourage ppl from making more powerful cars 
.
Safety Car
Joined: Jan 2005
Posts: 3,675
Likes: 58
From: Hayward (Bay Area) CA
There's many around. You can either ask the shop (who put your headers on) to "refer" a smog shop. They'll usually recommend a blind shop. Another way to do it is to simply talk to the shop. Let 'em know that you'll only pay, if you pass. Most of the times, if you pass the sniffer, they may not object on the visiual...or some of them don't even know the difference.
Pro
Joined: Sep 2005
Posts: 501
Likes: 0
From: Mesa Az
I know here all they do is hook up ot OBDII so we just erase the codes. They occassionally do visual checks but my car is pretty low so they really won't be able to see anything. They're just a bunch of rednecks here so they really don't even care if they do find something. I'd talk to a local Vette club if i were you and see where they say to go and where to avoid going.
Drifting
Joined: Oct 2006
Posts: 1,773
Likes: 2
From: San Diego CA
In Ca. you cannot modify (move or touch), the OEM cats. Even if you use cats with LT's, the OEM cats will have been modified.
Because of the above, no LT's will ever be able to get a CARB exemption. The reason some shorties are able to get the CARB exemption is because they bolt right up to the OEM cats without modification.
There are some shorties that do not have CARB exemption because the manufacturer never applied for it.