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Old 03-12-2013, 07:30 PM   #1
Bimmerguy82
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Exhaust question.

Do anybody know if these cats would work well enough to pass Cali smog? I will put them inline as close to my headers as possible. Just wondering if they will get to operating temp. And no I am not going back to OEM manifold, just trying to find the simplest and cheapest solution now that I am moving to Cali and will have to pass emissions again. Any help is appreciated. Thanks
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Old 03-12-2013, 08:06 PM   #2
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From what i've read/heard from everyone - every aftermarket cats have failed smog, even those high flow ones

Btw - 'these cats' no one knows what you're referring to
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Old 03-12-2013, 08:08 PM   #3
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ohhhh... those cats!

Nah
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Old 03-12-2013, 08:48 PM   #4
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Only stock will pass from what I know.

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Old 03-12-2013, 09:30 PM   #5
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Originally Posted by oAllElseFailo View Post

Btw - 'these cats' no one knows what you're referring to
aye
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Old 03-12-2013, 09:38 PM   #6
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Sorry, forgot to post the link of said cats. I am looking at Magnaflow universal fitment ones.
Will post later when I get home from work. There has to be a way for aftermarket ones to pass smog, otherwise why would they sell them right?
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Old 03-12-2013, 09:50 PM   #7
oAllElseFailo
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Find yourself someone that will hook you up to pass smog, that's pretty much how most of us do it here
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Old 03-12-2013, 09:52 PM   #8
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Part suppliers won't ship to CA address, unless the cat is 50 state approved.
It is possible to pass with aftermarket cats, it depends on where you smog
the car. Unless the smog guy specializes in BMW, they can't necessarily tell
if the cats are not OE
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Old 03-12-2013, 10:10 PM   #9
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If the cats are new, and as close to the engine as possible...maybe.

It's an impossible question to answer without knowing condition of engine, quality of fuel, strictness of test, etc. Even then, it's still a guess. What works for one may not for another.

The fact that they sell cats does not mean you're guaranteed to pass, lol. Much less surface area in universal ones, and the longevity is pathetic. Even if you do get it to work, don't be surprised if you have to buy another one to pass the next time emissions rolls around.
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Old 03-12-2013, 10:17 PM   #10
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Well I live in Seattle currently, and am trying to figure this all out before I move in August. I will be moving to North SD county, like Escondido area. @Brandon, is it easy to find guys to pass you on smog with a little bribery?
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Old 03-12-2013, 10:22 PM   #11
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If the car is out of state, the smog guys might take a closer look at everything. We had a Saab that was originally sold in Washington state and
easily passed smog here. More and more states are adopting CA smog standards, so it might be the same cat anyway. Are your cats shot?
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Old 03-12-2013, 10:27 PM   #12
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Well I live in Seattle currently, and am trying to figure this all out before I move in August. I will be moving to North SD county, like Escondido area. @Brandon, is it easy to find guys to pass you on smog with a little bribery?
If you ask around you can find people. I've kind of always had this same mechanic that my dad took his cars to and I take my car to so he knows people and he helps me out with it. But this year I had to pay a hefty bribe for it.. it's considered a felony and on top of that, this year Cali changed some of their smog names from a Star location to a gold shield thing (supposed to be more strict)

I've heard though, if you can keep your car registered in Washington, then you're exempt from CA emissions test. But again that's just something I heard, someone else can chime in on that one.

Edit: assume he's asking because he has ebay headers & his sig does say 'cat-less' exhaust.
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Old 03-12-2013, 10:44 PM   #13
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If you ask around you can find people. I've kind of always had this same mechanic that my dad took his cars to and I take my car to so he knows people and he helps me out with it. But this year I had to pay a hefty bribe for it.. it's considered a felony and on top of that, this year Cali changed some of their smog names from a Star location to a gold shield thing (supposed to be more strict)

I've heard though, if you can keep your car registered in Washington, then you're exempt from CA emissions test. But again that's just something I heard, someone else can chime in on that one.

Edit: assume he's asking because he has ebay headers & his sig does say 'cat-less' exhaust.
Yes I suppose I could keep it reg. up in WA, but I think that give me a whole new headache of problems. Dont think the police will like me having a car registered out of state and have a Cali license and address. Ugh, such a PITA this is right now. I dont see why aftermarket cats wont get me to pass tbe sniffer test. I mean, if they getting to proper temp they should be okay. Hopefully they dont do a visual check.
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Old 03-12-2013, 10:55 PM   #14
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Well again - i'm not 100% certain on the whole thing of having a car registered out of state, so don't take my word on that.

I honestly don't know the reason why they don't pass, but if you look in one of these threads of the 'official ebay headers' thing you'll see a ton of people talking about after market cats and still failing smog and so on.

However, there is a new law here that they're trying to pass/agree upon that any car 2000+ gets to skip the sniffer test and emissions will just be through the OBD & visual. But i've never seen any smog place do a visual check on any car we've had smogged legally lol
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Old 03-12-2013, 11:05 PM   #15
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Move to DC. Visual smog test (aka no black smoke, no problem) and no inspection. Ahhh I love the capital.
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Old 03-12-2013, 11:07 PM   #16
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Btw - 'these cats' no one knows what you're referring to
Catch me walkin' through the Crowne Plaza with my Ballys on.
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Old 03-12-2013, 11:11 PM   #17
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Well again - i'm not 100% certain on the whole thing of having a car registered out of state, so don't take my word on that.

I honestly don't know the reason why they don't pass, but if you look in one of these threads of the 'official ebay headers' thing you'll see a ton of people talking about after market cats and still failing smog and so on.

However, there is a new law here that they're trying to pass/agree upon that any car 2000+ gets to skip the sniffer test and emissions will just be through the OBD & visual. But i've never seen any smog place do a visual check on any car we've had smogged legally lol



Hopefully they pass this soon. That would really help.
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Old 03-12-2013, 11:12 PM   #18
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I've heard though, if you can keep your car registered in Washington, then you're exempt from CA emissions test. But again that's just something I heard, someone else can chime in on that one.
That only works if you're in the military; you can keep your car registered in your home state. Other than that, you are SOL.
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Old 03-12-2013, 11:16 PM   #19
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That only works if you're in the military; you can keep your car registered in your home state. Other than that, you are SOL.
or if you are a student....
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Old 03-12-2013, 11:27 PM   #20
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Well there you go lol guess that options out.

So really you just have to go back to OEM or ask around when you arrive for a place that can help you pass smog. You can always try testing after market cats but like i said - haven't seen anyone pass it.

Just dont fall for some stupid sh*t - I found someone only wanting 160$ to smog, went there and he's like okay I need your drivers license, registration and I need the car for 6-8 weeks. Pfft.. probably come back to a shell of a car and hell if i'm giving him my information
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