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2013 F-XT 4eat
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1,390 Posts
Discussion Starter #1
California Vehicle Code § 27150 – 27153

Well it was bound to happen. CA is being more aggressive towards modified vehicles. I'd say more-so for those running muffler deletes than performance cat-back exhausts in whole.

Now it is no longer a "fix-it" ticket... Now its a $1000 fine and a wonderful visit to your local State Ref...

For those running WRX/STI mufflers, I would expect to see a slow increase in WTB ads across multiple Subaru forums... Take care of the Supply/Demand principles... >:):wink2:


California Vehicle Exhaust Noise Laws (2019)


https://forums.nasioc.com/forums/showthread.php?p=45895452

Screen grabs from another site, missed part of the Q&A..







 

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2019 Sport cvt
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152 Posts
Yep. And it's only beginning. Another law that is subjective and not objective. How do you fight a cite based on an officer's personal impression of a sound? (Admittedly it would probably difficult if not impossible to write a technically adequate "law" that defined the (objectionable) measurable sound characteristics.)
 

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2019 Forester Touring Automatic
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241 Posts
I was a police officer in Nevada. We had (this was the 1980s, but I think it's still in effect) an ordinance titled "Loud noises from mufflers," that stated that the legislative intent was to require vehicles to operate as quietly as possible. If the vehicle had been modified from stock to make more noise than it did from the factory, it was ticket bait. I wrote several of those to drivers who had installed glass packs and similar modifications on their cars, and never lost one in court. As soon as the driver mentioned they had modified the exhaust system and that it was louder than before, they were toast.

I expect other jurisdictions have similar laws. Keep this in mind when planning vehicle mods.
 
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