Are high flow cats legal in ca?

CARB (Calif. Air Resources Board) “stickers” or direct OEM replacement parts are required for replacement parts in California to be legal. You can’t get a CARB sticker for a “high flow cat.”

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Will a high flow cat pass emissions California?

Because HF cats lack a CARB number, they will fail the visual inspection. Despite the fact that Solo units are installed in stock locations, the inspector would have to be on top of their game if they were to pass.

Will high flow cats pass inspection?

As long as the car is properly tuned, it is claimed that you can pass the CAT without it. With a little tuning, they should be able to pass the sniffer. A visual inspection reveals that it is faulty.

Can I install a non California catalytic converter?

You’ll need a CARB-compliant catalytic converter to pass the inspection. It is also legal to install a CARB-compliant catalytic converter on your vehicle if you live in a state where only aftermarket catalytic converters must meet EPA standards.

Are high flow cats worth it?

Yes. It’s not difficult; all you need is a good tune and a high-flow cat to pass the test. Was surprised to learn how strict the emissions regulations were. In order to pass a visual inspection because it appears that the car has a catalytic converter, you could simply hollow out a stock or inexpensive ebay catalytic converter.

Do high flow cats make exhaust louder?

Cats with higher flow rates will undoubtedly be noisier. It may or may not be a significant amount, depending on what you consider loud.

Do you need a tune with high flow cats?

There is no need to tune any high-flow cats. They will, of course, be tweaked with a tune.

Do high flow cats change sound?

Exhaust tone will be louder at wide open throttle with long-tube headers and the required x-pipe and high-flow cats, but it won’t change much during normal driving. Aftermarket high-flow mufflers may not make a noticeable difference if the stock ones are replaced with them.

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