Due to the strict vehicle laws in California, muffler deletions are not possible. If you can keep your vehicles exhaust noise low enough you may be able to avoid attention from police. Unfortunately for enthusiasts everywhere, it would seem that a few bad apples have ruined it for everyoneor whats more plausible is Californias government trying to cash in on the multi-billion dollar industry that millions of Americans support the automotive Aftermarket. If you pass the emission test, chances are you get a penalty for illegal car noise. This applies to anyone trying to get a vehicle repair or hardship waivers. The cookies is used to store the user consent for the cookies in the category "Necessary". 50 decibels is the same as a quiet conversation, a quiet suburb, or a quiet fridge. 1824 amended how excess exhaust noise violations are handled by law enforcement. The cookies is used to store the user consent for the cookies in the category "Necessary". The only thing that matters is when you get smogged, and right now they dont care about mufflers. How can I make my catalytic converter pass smog? Do not fret over pollution levels so long as your catalytic converter is in good order. You can, but you may get a ticket for exceeding noise on the go. Can you pass smog with aftermarket catalytic converter? Additionally, it can be challenging to get a mechanic ready to take off the muffler due to the local rules. Will headers cause me to not pass smog? The word quiet is used to describe the noise level. Thats where I come in. But opting out of some of these cookies may affect your browsing experience. A catalytic converter features a substrate with a chemical coating containing precious metals like platinum, palladium and rhodium. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Any bypass, cutouts, and especially whistle tips are not permitted. You can do so by signing a petition to nullify AB:1824. Answer (1 of 7): The components involved in emissions control do not need to be removed or disconnected with a aftermarket exhaust, no. Your exhaust pipe will unleash all of that noise without any dampening by a muffler. Sounds are measured in decibels. Actually the test station here in Houston does OBD2 on our 2000 KIA Sportage (Houston and Dallas have stricter tests). a = 1; The smog check consists of 3 parts visual, functional, and tailpipe emissions. Below are a few things we can do as enthusiasts to either change the law, or get around it. . Note: When installing an aftermarket CAT on your vehicle, we suggest using an OEM (original equipment manufacturer) 02 sensor. The danger level depends on the substances amount. A non-emission related component does not need an EO number. Keep your car off the road until you have your converter repaired or replaced. Gibson Performance Exhaust (57) BBK Performance (41) Flowtech (30) Banks Power (24) Hooker Headers (23) Doug Thorley Headers (4) Flowmaster (4) Patriot Exhaust (4) Show All. Section 27200 of Californias Vehicle Code also establishes that measuring vehicle noise should be done at a distance of 50 feet from the centerline of travel. These components are visible underneath your car. Muscle cars from the late 1970s may be less desirable than their siblings from 1975 or earlier, often due to smog requirements.In California, for instance, a car must pass rigorous inspections for emissions equipment. A typically non-emission related upgrade component is the air filter unit. document.write(AffiliateBanner); Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. I cant promise any of these methods will keep you from being stopped by the police, paying a hefty fine, or even out of handcuffs, but at least you can say you fought the law (not literally). Fines for illegal exhaust can be very high. Stations? Decibel X for iPhone and Sound Meter for Android are some of the more popular ones. Hearing damage can be caused by noise above 70 decibels. However, you may visit "Cookie Settings" to provide a controlled consent. Will aftermarket headers cause my car to fail the smog test? If you still have questions, you may contact CDPHE at (888) 861-2646 or CDPHE_mobile@state.co.us. Catback exhaust systems are legal in California because the modification starts after the catalyst and does not affect the emissions control components of the vehicle. JavaScript is disabled. Incidentally, did you buy your car new? this.border = '' These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. 27150. Without a muffler, a car is loud. Smoke from the tailpipe and a hot running engine create high levels of harmful emissions. Larger engines have the ability to gain more power when backpressure is reduced.

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