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    California's "new" exhaust law (2019)...explained

    Since we have many users from California here...

    https://jalopnik.com/why-people-are-suddenly-freaking-out-over-californias-e-1831620651

    Interesting, I didn't know that laws in California are similar to German laws.

    95dB? Oh boy... Smiley

     


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    RC (Germany) - Rennteam Editor Audi R8 V10 Plus (2016), Mercedes E63 S AMG Edition 1 (2018), Mercedes C63 S AMG Cab (2019), Range Rover Evoque Si4 Black Edition (2019)


    Re: California's "new" exhaust law (2019)...explained

    I would think that the car manufacturer exhaust sound would be below the 95db level. 

    In practice, very doubtful a policeman would take the time to issue a ticket unless it was ridiculously loud. I suppose while at full throttle some OEM exhaust may exceed 95db but in that case a citation for excessive noise is the less of your worries. indecision


    --

    Stress is man made.


    Re: California's "new" exhaust law (2019)...explained

    nberry:

    I would think that the car manufacturer exhaust sound would be below the 95db level. 

    In practice, very doubtful a policeman would take the time to issue a ticket unless it was ridiculously loud. I suppose while at full throttle some OEM exhaust may exceed 95db but in that case a citation for excessive noise is the less of your worries. indecision

    In Germany, we have special police task forces in various regions, going after too loud cars... The fine can be expensive and even worse, they can confiscate the car on the spot, transport it to the "TÜV" and if you're unlucky, you even spend a couple of days or longer without a car. Not pretty.

    This is why it is important that a car sounds good stock over here, without any mods. Smiley


    --

    RC (Germany) - Rennteam Editor Audi R8 V10 Plus (2016), Mercedes E63 S AMG Edition 1 (2018), Mercedes C63 S AMG Cab (2019), Range Rover Evoque Si4 Black Edition (2019)


    Re: California's "new" exhaust law (2019)...explained

    nberry:

    I would think that the car manufacturer exhaust sound would be below the 95db level. 

    In practice, very doubtful a policeman would take the time to issue a ticket unless it was ridiculously loud. I suppose while at full throttle some OEM exhaust may exceed 95db but in that case a citation for excessive noise is the less of your worries. indecision

     

    95db is actually very low.

    Laguna Seca has a 98db noise limit.

    918 is above that and needs a waiver to run. 

    I believe Aston goes over 98db as well, and from memory so does a GT3RS.


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    Re: California's "new" exhaust law (2019)...explained

    I doubt your 918 and myGT3RS is above 95db unless at full throttle for a period of time. In that case, the policeman will be issuing a citationfor much larger fine and violation. smileyThe other day I was at only 7000 rpm’s and my speed was 130 miles per hour. Had I been stopped they may have confiscated my car. indecision


    --

    Stress is man made.


    Re: California's "new" exhaust law (2019)...explained

    There is extensive and knowledgeable discussion surrounding this on the latest Smoking Tire podcast; the Jalopnik article does not offer a nuanced view.


    Re: California's "new" exhaust law (2019)...explained

    95dB means very little without understanding whether it is A-Weighted or C-weighted or Z-Weighted and from what distance it is measured (sound level dissipates quickly as you increase distance to the source).

    https://www.noisemeters.com/help/faq/frequency-weighting.asp


    --

     

    18 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi

     


    Re: California's "new" exhaust law (2019)...explained

    RC:
    nberry:

    I would think that the car manufacturer exhaust sound would be below the 95db level. 

    In practice, very doubtful a policeman would take the time to issue a ticket unless it was ridiculously loud. I suppose while at full throttle some OEM exhaust may exceed 95db but in that case a citation for excessive noise is the less of your worries. indecision

    In Germany, we have special police task forces in various regions, going after too loud cars... The fine can be expensive and even worse, they can confiscate the car on the spot, transport it to the "TÜV" and if you're unlucky, you even spend a couple of days or longer without a car. Not pretty.

    This is why it is important that a car sounds good stock over here, without any mods. Smiley

    They even have special stops for moped riders to ensure the 50cc machines can not exceed certain speeds. Smiley

    My 50cc diTech Aprilia runs like a cheetah-🐢


     
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