California "new" exhaust law - some claims debunked inside

  1. Redline360

    Redline360 Senior Member
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    in California? Even if you're not, you may have heard about the hype surrounding the exhaust law in California. Check the link for more information regarding this. Below is a snippet:

    WERE CALIFORNIA’S EXHAUST NOISE RULES CHANGED?
    No. Since 2003, exhaust systems installed on motor vehicles with a manufacturer’s gross vehicle weight rating of less than 6,000 pounds, other than motorcycles, may not exceed a sound level of 95-decibels when tested under Society of Automotive Engineers (SAE) test procedure J1169 (May 1998). This was not changed by A.B. 1824.


    IS IT NOW ILLEGAL TO INSTALL AN AFTERMARKET EXHAUST SYSTEM ON MY VEHICLE?
    No. The sale and installation of an aftermarket exhaust system remains legal in California so long as it does not exceed a sound level of 95-decibels when tested under SAE J1169 and complies with all other exhaust and safety laws and regulations.


    IF EXHAUST NOISE LAWS DIDN’T CHANGE, WHAT DID?
    Beginning January 1, 2019, a motorist cited for violating the current California exhaust noise law can receive an immediate fine. Previously, motorists received what is known as a “fix-it” ticket, which allowed for 30-days to correct the violation.

    Click for more info: https://www.semasan.com/legislative...FqAMSET8cEJk6J_JO9eAg1797fUBuSZjC_yXlmp7awKSQ

    Hope this helps clear the air!
     
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  2. NoKz

    NoKz Speed Limit Tester

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    Yeah, nothing changed but the penalties.

    This issue is; police are not testing exhausts in excess of 95db. They're targeting ANY modified exhaust and issuing a ticket for it to be inspected by a state ref. They don't care if it's under 95db or not. They'll let the ref/judge make that call. This is a waste of state resources and peoples time. It's a money grab. $25 fix-it-ticket vs a fine ranging up to a $1,000 max. I can see why they're strictly enforcing it now. :rolleyes:
     
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  3. ctrmofo

    ctrmofo Senior Member

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    Cali, the state of never ending taxation and ripping people off lol.
     
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  4. CTR198

    CTR198 Member

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    The fine can be up to $1000. This person just got his actual fine of $207.

     
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  5. LilToTo17

    LilToTo17 Senior Member

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  6. ctrmofo

    ctrmofo Senior Member

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    the fact remains most exhaust are going to break the 95 db barrier.

    here's my db reading taken of the grp turbo back exhaust at idle with 95.2 db...at idle. it's one of the most "quiet" and mature sounding exhaust on the market.

    IMG_4659.JPG
     
  7. LilToTo17

    LilToTo17 Senior Member

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    GRP is hella loud lol. You got GRP FULL DOWN-PIPE, MID-PIPE, BACK SECTION EXHAUST, DOWNPIPE BLANKET of course it'll be loud
     
  8. ctrmofo

    ctrmofo Senior Member

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    You may not have experienced it in person then. It’s sports cat dp to start with and is 2.5” piping all through.

    That’s a very old clip and was a prototype. Go to FB link below if you want to see more current clips. Trust me it’s not loud.
     
  9. LilToTo17

    LilToTo17 Senior Member

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    95.2 db says otherwise
     
  10. LilToTo17

    LilToTo17 Senior Member

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    #10 LilToTo17, Jan 11, 2019
    Last edited: Jan 11, 2019



    Idk still sounds loud lol
     
  11. 02SilverSiHB

    02SilverSiHB Senior Member

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    what was the distance of that device from the exhaust when you took that reading
     
  12. Zeffy94

    Zeffy94 Senior Member

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    What’s the stock exhaust with no modifications read at for volume? Everyone says it’s too quiet but I’m curious to know what it actually shows.
     
  13. Ouhei

    Ouhei Senior Member

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    I'm curious if this law applies to motorcycles too? I've always found things like Harleys are way way louder than 99% of cars even with aftermarket exhausts. Just seems like they should be pulling those guys over too.
     
  14. boosted180sx

    boosted180sx Senior Member

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    yes it applies to motorcycles also.
     
  15. MonkeyConQueso

    MonkeyConQueso Senior Member

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    Uh...

    Motorcycle decibel limits are, to say the least, weird. Any motorcycle or aftermarket exhaust manufactured after 2013 must have an EPA sticker stating that they signed off on it, which includes sound limits apparently. This is pulled from here: https://drivinglaws.aaa.com/tag/motorcycle-noise-limits/

    Honestly, 99% of cops don't have decibel readers and will go by their own judgement. But if cops react the same in CA as 2004 and earlier, they will look the other way for motorcycles unless you're being a nuisance. Cars they will happily cite if they believe you have an aftermarket exhaust that is anything over stock and they have time to give you a ticket, or use it as probable cause to investigate for other "issues". (Proof: personal experience for both, and acquaintances with CHP/city police).
     
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