348 CARB Approved Cats (SoCal)

I believe these aren’t original ANSA but rather recreations to that spec. Email them and get the details.

https://www.ferrariparts.co.uk/part/ferrari/134001?id=45050

 

Technically any converter other than the stock factory cats that the car originally came with must be on the California database: https://ww2.arb.ca.gov/aftermarket-catalytic-converter-database. If you search for a 348, you will find that only crappy weld in Magnaflow cats are approved. There will be numbers stamped into the stock cats and these Magnaflow cats that the smog inspector should look in order for the car to pass the smog test. Any cats other than these will cause the car to fail the test.

That said, most inspectors do not know where to look on a Ferrari to find the numbers on the cats and will let them pass as long as they functionally pass the tailpipe sniffer test. But if you happen to get that one inspector that has a bug up his ass, and doesn't find the required numbers, then it is an immediate failure which is sent to Sacramento and recorded, so you then have to get approved cats.

I had an old Toyota pickup truck that had a replacement welded in cat that was so old, it did not have any numbers on it, so technically it was grandfathered in. It had passed CA smog test for 20 years, until one day I had it smogged at a shop, that ironically our repair shop sent all of of Ferrari's to. The new kid failed it because it had no numbers on it, didn't call me to say "hey this won't pass, because there are no numbers on it". The stupid thing is that the smog tech is not prompted to look for the numbers on the cat until the end of the test, after all of the vehicle's info and sniffer data is sent to Sacramento, so you cannot abort the test. So now I could not go to my regular old smog guy for a retest until I replaced the cat. I had to have a $600 CARB approved cat welded into a truck that was worth $2000, and had a perfectly good functioning cat on it, but had no numbers stamped into it.

In California, it is also illegal to sell used cats unless they have been tested and certified by a cat test company. Good luck with that.

If it were my car, I would have a good Ferrari repair shop that does smogs do a pre-test on your car with the high-flow cats on it to see it it will pass. If it does, then I would have them go ahead with the test and keep my fingers crossed that they don't look for the numbers. Are your high flow cats polished stainless steel, or do they look like cruddy old rusty stock cats?

If the car fails, then I would buy good used original factory cats for the car.

 

These cats are not factory, they have no CARB numbers stamped into them and would fail the test if the tech looks for the numbers.

 

I have never had an issue with my non factory cats. As long as they resemble OEM, they will pass. Worst case scenario - if you retained the OEM cats, have a muffler guy cut them open and replace the innards with 200-cell metallic cores and then carefully weld them closed These are far more efficient than the OEM ceramic matrix units and a hellova lot lighter.

Testers are provided with pictures on line from the BAR/DMV to refer to the exhaust system. Again, as long as they appear to be stock no one is going to crawl under your car to check part numbers.

 

I'm going through this for my 348. You will need an OEM or any PC1 catalytic converter. There is a list on the ARB website. You will also want the oem headers and air injection system. I believe the air system is just an air rail and a set of vacuum valves/hoses that mount to the engine. Many people remove these in states where emission are not required, but you will have to have them in California, unfortunately.

Here is the ARB website that list the PC1 catalytic converters for Pre-OBD-II cars.

This is the current list:

• Executive_Order Series Category Manufacturer
• D-182-41/12-24-08 80300/80500 PC-1 Walker (DBA Tenneco) (734) 384-7824
• D-182-54/08-31-12 80800 PC-1 Walker (DBA Tenneco) (734) 384-7824
• D-182-65/11-13-15 81100 PC-1 Walker (DBA Tenneco) (734) 384-7824
• D-182-77/01-20-23 81300 PC-1 Walker (DBA Tenneco) (734) 384-7824
• D-193-86/11-27-08 36000 PC-1 Car Sound(DBA Magnaflow) (949) 858-5900
• D-193-109/01-18-13 336000 PC-1 Car Sound(DBA Magnaflow) (949) 858-5900
• D-193-117/03-07-14 332000 PC-1 Car Sound(DBA Magnaflow) (949) 858-5900
• D-193-126/12-29-15 352000 PC-1 Car Sound(DBA Magnaflow) (949) 858-5900
• D-193-134/01-30-2018 332100 PC-1 Car Sound(DBA Magnaflow) (949) 858-5900
• D-193-150/04-05-2021 3322000 PC-1 Car Sound(DBA Magnaflow) (949) 858-5900
• D-193-158/06-10-2024 332000 PC-1 Car Sound(DBA Magnaflow) (949) 858-5900
• D-193-159/06-10-2024 3321000 PC-1 Car Sound(DBA Magnaflow) (949) 858-5900
• D-193-160/06-10-2024 3322000 PC-1 Car Sound(DBA Magnaflow) (949) 858-5900
• D-193-166/07-22-2024 352000 PC-1 Car Sound(DBA Magnaflow) (949) 858-5900
• D-280-72/12-17-08 65000 PC-1 AirTek, Inc. (DBA Catco) (800) 247-2515
• D-280-95/06-13-13 83000 PC-1 AirTek, Inc. (DBA Catco) (800) 247-2515
• D-280-97/07-18-13 58000 PC-1 AirTek, Inc. (DBA Catco) (800) 247-2515
• D-353-62/06-22-09 69000 PC-1 Miller Catalyzer Corporation (888) 744-6006
• D-562-39/12-16-09 21000 PC-1 Valina, Inc. (DBA CarTex) (323) 269-2577
• D-562-59/08-04-11 201000 PC-1 Valina, Inc. (DBA CarTex) (323) 269-2577
• D-665-3/03-17-10 861000 PC-1 Eastern Manufacturing, Inc. (215) 702-3600
• D-724-2/04-07-15 18000 PC-1 Converter Unlimited, Inc. (714) 933-5200
• D-796-2/09-30-21 420000 PC-1 Advanced Clean Air Technologies Global LLC (231) 437-5000
• D-798-11/05-14-20 800000 PC-1 AP Exhaust Holdings, LLC (DBA Catco and Eastern) (800) 247-2515

Some of the folks doing this for 308/328 have good info too:
Brian Harper in this thread https://www.ferrarichat.com/forum/posts/146391379/

The page number changed, but it's the same info in the latest version (bottom of page labeled 40): https://www.bar.ca.gov/pdf/smog-check-manual.pdf
For Pre-OBDII Vehicles, inspectors shall use the EO number to verify the CAT falls within the correct vehicle category- PC-1, PC-2, T-1, T-2. Refer to ARB’s Web site for a separate Pre-OBDII EO Listing containing the EO numbers and corresponding vehicle categories. Inspectors are not required to check specific vehicle application using the series or part numbers.

I have OEM Cats and headers, so less of an issue for me and I haven't tried the aftermarket approach.

Not sure where you are in SoCal, but I'm in Carlsbad. I could refer you locally, if you are close.

 

Hopefully Leno’s Law makes this crap easier

 

I gave you the answer two weeks ago. Why bother with fabricating magnaflows?

 

I believe that Leno's law only covers cars that are 35 years or older, but doesn't roll forward - so I guess it will cover anything 1992 if passed in 2027, but nothing newer ever.

It's crazy how focused CA is on the technicalities of implementation, but are way less interested in the actual emissions numbers. I have no beef with having to run catalytic converters, but I do get annoyed about having to find OEM parts and whatnot. Just let me hit the tailpipe numbers!

For smog, I used FIC Smog - (760) 943-1600. No drama testing the car, but you will have to pass visual inspection and tailpipe.

 

No, it rolls forward every year, that’s the best part

 

Oh cool. That's great news.