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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sat, Dec-16-2017, 12:03:14 AM   #11
icecream
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Default Re: Catless in Cali

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Originally Posted by L0ADED View Post
Terrible idea.

If you can't afford getting OE quality cats in section 1, keep your stock headers.
+1
Commutes are crappy enough without having to smell your crappy exhaust forcing me to roll my windows up cause you want to be cheap. Sorry but there is no excuse to not have them. You can get cats welded in for pretty cheap and SGT also has them for like 650 in a brand new section 1.
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Old Sat, Dec-16-2017, 12:06:59 AM   #12
Kwakjoe
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Default Re: Catless in Cali

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Originally Posted by L0ADED View Post
Terrible idea.

If you can't afford getting OE quality cats in section 1, keep your stock headers.
I said daily drive as an exaggeration. I drive my car maybe twice a week. I was just curious on the possibility that I decide to. I'm planning on getting euro cats so hopefully that will be "quality" enough
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Old Sat, Dec-16-2017, 12:45:59 AM   #13
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Default Re: Catless in Cali

Not trying to steal your thread, but it is related. Is there still an increase in power when switching from oe headers to catless headers with a catted section 1?
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Old Sat, Dec-16-2017, 12:53:26 AM   #14
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Default Re: Catless in Cali

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Not trying to steal your thread, but it is related. Is there still an increase in power when switching from oe headers to catless headers with a catted section 1?
Yes. The us spec hp numbers vs euro spec hp number is the best example.
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Old Sat, Dec-16-2017, 01:03:51 AM   #15
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Default Re: Catless in Cali

Please run cats.
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Old Sat, Dec-16-2017, 01:41:02 AM   #16
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Default Re: Catless in Cali

On second thought going catless will probably bring the environment to it's knees causing the ice caps to instantly melt and flood humanity off the face of the earth within hours of starting your car so you better just leave the stock headers on...

OP you'll be fine short term. It is stinky as hell though (it'll make your eyes water as well) but that'll motivate you to get some cats on there asap.
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Old Sat, Dec-16-2017, 01:44:51 AM   #17
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Default Re: Catless in Cali

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Originally Posted by Good View Post
If you know a guy, youíll pass smog for $100.


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No doubt. Thatís the case in many States. My point is that you guys should absolutely be using cats. The ambient air certain parts of California is god awful


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Old Sat, Dec-16-2017, 02:26:38 AM   #18
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Default Re: Catless in Cali

man Cali sucks in terms of smog, they actually really hook up shit in the end of your exhaust..

In Nevada they just plug in to your OBD2 and that's it, as long as sensors are "active" they don't care. So if you're running simulators or bifoulers you're good.
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Old Sat, Dec-16-2017, 02:46:55 AM   #19
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Default Re: Catless in Cali

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man Cali sucks in terms of smog, they actually really hook up shit in the end of your exhaust..

In Nevada they just plug in to your OBD2 and that's it, as long as sensors are "active" they don't care. So if you're running simulators or bifoulers you're good.
They still stick the probe in here in TX if you have an obd1 car that isn't at the 25yr mark. It's a small percentage of cars at this point I'd imagine
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Old Sat, Dec-16-2017, 03:28:37 AM   #20
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Default Re: Catless in Cali

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Originally Posted by erickrayos View Post
man Cali sucks in terms of smog, they actually really hook up shit in the end of your exhaust..

In Nevada they just plug in to your OBD2 and that's it, as long as sensors are "active" they don't care. So if you're running simulators or bifoulers you're good.
CA smog has been using OBD2 for a few years already for model newer than 2000.
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Discussing Catless in Cali in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)