Why Do You Have To Be 17 To Watch A Rated R Movie? A whisper is 30 decibels, normal conversation is 60 decibels, and a motorcycle engine runs at 95 decibels. Granted, they have every right to, particularly if you are breaking local noise ordinances. California smog laws can still make your custom exhaust modifications illegal. The laws and regulations have gotten tighter and adjusted for the development of new vehicle technology. Three Ways To Beat California's Absurd New Exhaust Law - Street Muscle Also, if your car smokes or over-heats, you may not pass the smog inspection. Is a turbo back exhaust legal in California? Will I Pass Smog With A Muffler Delete? - LegalProX Which Parts Are Smog Legal? An average exhaust costs between $300 and $3000. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Thats insane! Its important to be careful with the cold air intakes. Once you fill out the form, take it to your local DMV office and submit it along with any other appropriate fees. How Much Vacation Does The Average American Get? The cookies is used to store the user consent for the cookies in the category "Necessary". How California's BAR-approved smog stations know you have a modified Is resonator delete illegal in California? (b) For the purposes of exhaust systems installed on motor vehicles with a manufacturers gross vehicle weight rating of less than 6,000 pounds, other than motorcycles, a sound level of 95 dbA or less, when tested in accordance with Society of Automotive Engineers Standard J1169 May 1998, complies with this section. The technical answer is yes. Help us keep this community going strong by participating regularly, sharing build updates, race reports, and discuss technical topics here instead of on social media. } document.write(AffiliateBanner);