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Join Date: Aug 2001
Location: SoBay, SoCal
Posts: 1,369
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Will Muffler change affect Smog (Calif) ?
Anyone know if a muffler change alone will alter the smog certification in Calif?
Considering changing from stock to Fleumeister muffler on my 3.2 Carrera. No other mods planned. eg no ssi, no cat-bypass. Anyone in Calif, or LA area with this setup? Thanks Mike |
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10-25-2002, 02:19 PM
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Join Date: Mar 2000
Location: Irvine, CA
Posts: 1,200
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No, it won't.
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10-25-2002, 02:19 PM
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Well, based on my own personal (bad) experience, if the officer thinks (any part of) your exhaust system is not "original" from the factory he can write you a fix-it ticket.
I know. It happened to me.
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Johnny Riz 1973 911 Custom Euro 3.2L "Sports Purpose" '10 Subaru WRX-STi Hatch - modded. RGruppe#152 Early 911S Reg.#335 |
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10-25-2002, 04:53 PM
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Join Date: Feb 2000
Location: Dallas, TX
Posts: 4,614
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John,
I went to your car gallery to see what your exhaust looks like. Car looks really nice, esp with the 3.2. One question thought, are you using a Cool Collar? How effective is it? 
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Neil '73 911S targa |
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10-25-2002, 05:44 PM
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Join Date: Jul 2000
Location: So. Calif.
Posts: 19,910
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I can't cite the specific ordinance, but so-called "cat-back" exhaust system mods are okay as long as they don't exceed maximum sound level specs. All the emission controls end at the catalytic converter.
Otherwise, I don't think you'd see so many stainless steel coffee-can exhaust systems on Hondas, Toyotas and Mitsus; all legal and a big dollars for cat-back exh. manufacturers. Sherwood Lee http://members.rennlist.org/911pcars |
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10-25-2002, 06:34 PM
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Yeah Neil, I got a cool collar.........
You can just see it in the edge of the engine pic...which I'm sure you noticed. I don't know if it does anything...maybe helps radiate a little more heat than the plain black oil filter does alone... But it can't hurt anything either, so there it lives. cheers
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Johnny Riz 1973 911 Custom Euro 3.2L "Sports Purpose" '10 Subaru WRX-STi Hatch - modded. RGruppe#152 Early 911S Reg.#335 |
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10-26-2002, 09:40 AM
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Join Date: Feb 2000
Location: Dallas, TX
Posts: 4,614
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John,
I was just kidding about the cool collar. I have seen such raging debates about it on this and other forums, that I wanted to kid you about it. I'd consider adding it to my car, but there are so many other things that need attention on my car, that it is pretty far down the list. Your car on the other hand looks perfect. I am jealous.
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Neil '73 911S targa |
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10-26-2002, 09:53 AM
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No sweat at all Neil. I was happy to throw my .02 out there.
Actually the cool collar can realistically only be a "small part of a bigger system" It only cost $35.00 so if it only lowers the ambient oil temp one degree by it's presence Im still happy, and if nothing else it provides an additional source of heat dissapation. What the heck. Btw, Thx very much for yr nice words re my 911 
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Johnny Riz 1973 911 Custom Euro 3.2L "Sports Purpose" '10 Subaru WRX-STi Hatch - modded. RGruppe#152 Early 911S Reg.#335 |
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10-26-2002, 10:58 AM
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At least in CA...there is no dbA limit on mufflers.
It is at the discretion of the officer. According to the regs, any exhaust modified to increase sound can be cited as "modified"......it is VERY subjective and very rarely enforced, fortunately. Just listen to the uncapped Harleys..... 
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10-28-2002, 07:25 AM
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mikez, You are absolutely correct. I was followed approx 5 miles last march by a "county sherriff" who waited until I was inside his juristiction (unincorporated city) which was stupid of me to drive into.....as I could have turned and avoided doing so. But he cited me for a "modified exhaust" saying my exhaust was too loud....
Subjective to say the least.......I never let it get above 3k on the tach while he was tailing me 'cos I know above 4k it really gets on the pipe. So while I'm pulled over a pack of those straight piped Harleys lumbers past.........louder than $h*t.... He never even looked up at them......  So much for blind justice.... 
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Johnny Riz 1973 911 Custom Euro 3.2L "Sports Purpose" '10 Subaru WRX-STi Hatch - modded. RGruppe#152 Early 911S Reg.#335 |
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10-28-2002, 08:35 AM
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Join Date: Mar 2000
Location: Irvine, CA
Posts: 1,200
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"Anyone know if a muffler change alone will alter the smog certification in Calif?"
The answer is still no. A muffler change will not alter the smog certification in California - the smog station won't give a whit about what kind of muffler you have. |
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10-28-2002, 09:06 AM
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Did the answer ever change?
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Johnny Riz 1973 911 Custom Euro 3.2L "Sports Purpose" '10 Subaru WRX-STi Hatch - modded. RGruppe#152 Early 911S Reg.#335 |
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10-28-2002, 12:55 PM
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Da cab
