can you pass smog with aftermarket exhaust in california?

But opting out of some of these cookies may affect your browsing experience. Using some old NGK 7s and magnecore wires that have been passed down from 3 dsms. Know some tips and tricks to help your car pass smog check. The exhaust system doesnt get inspected after the CAT. Exhaust modifications are illegal only if noise emitted is over 95 decibels. Yes (in case of a faulty catalytic converter still functioning). Here is a little list of some of the things I have had or not had issues passing smog with. Catback exhaust systems are legal in California due to the fact that the modification starts after the catalytic converter and does not affect the emissions control components of the vehicle. Do modded cars pass emissions? Is it against the law to install an aftermarket exhaust system on my car? Sounds are measured in decibels. If you install and maintain a cold air intake, it wont damage your engine. The majority of the hFC's are legal in 49 states. Actually the test station here in Houston does OBD2 on our 2000 KIA Sportage (Houston and Dallas have stricter tests). A vehicle with a muffler delete will pass the test for an exhaust-emission exam. Is a turbo back exhaust legal in California? Most of you probably remember the scene in American Graffiti, where John Milner takes a break from cruising the main-drag to stop and remove the header-plugs from his iconic deuce-coupe. Is a cold air intake bad for your engine? California has had a smog program since 1984 in order to improve air quality and protect public health. 6 Sound System. Fortunately, it has become much easier than manually removing exhaust caps. Have fun. Answer (1 of 5): It is illegal to change the sound output of the muffler system from the factory sound levels in California. No matter which way you slice it, $1000.00 is excessive for an exhaust violation. The engines noise volume directly relates to the mufflers quality. If you still have questions, you may contact CDPHE at (888) 861-2646 or CDPHE_mobile@state.co.us. A cat deletion is a pipe that removes the catalyst from the exhaust system. Adding a catalyst to a vehicle that was originally designed for another purpose will cause it to fail the smog check. What are some other options to get around this crazy law? . Any cutouts, or even whistle tips, are not allowed. Then, the brand must compensate for its flaws adequately. First step of this process is to make your vehicle's . For second and subsequent violations fine is $100-$250. He will examine your vehicles undercarriage, spot the issue, and promptly issue you a penalty if something goes wrong. A whisper is 30 decibels, normal conversation is 60 decibels, and a motorcycle engine runs at 95 decibels. Also, uninstalling the muffler can take the paint off by accident. Minimum fine for a first conviction is minimum $50 to maximum $100, with a total fee of $193. If the noise is over 95 decibels, exhaust modifications are not allowed. Stay fast. Launched in 2001, this resource focuses on the 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 platforms. Features; Auto Repair; . What's the best way for a fwd 1g to pass if it's been modified? Read on and find out. . So will a muffler delete pass emissions? It is against the law to modify a cars exhaust system to make it more powerful than it was approved for. AffiliateBanner += ' I noticed some flames coming out of your exhaust, mind popping the hood for me, and stepping out of the car? Take Away. The most popular modification is the muffler deletion, it sounds louder and can improve your vehicle mileage. . this.alt = '' Gas is pulled from the engine through the manifold following the explosions. Below are some frequently asked questions about California exhaust noise laws! Which Parts Are Smog Legal? California car laws, rules and regulations. Once you fill out the form, take it to your local DMV office and submit it along with any other appropriate fees. Modifications that impact emissions are often not legal for use on emissions controlled vehicles used on public highways (including street legal ATVs). a = 1; Cars with straight pipe exhaust systems are louder than stock cars. 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. You are required by law to keep your vehicles stock emission control systems fully operational. As stated, the mufflers primary goal is to minimize excessive noise. This cookie is set by GDPR Cookie Consent plugin. Previously, individuals with modified or exessively loud exhausts, were issued a fix-it ticket and the issue was correctable. But not all vehicles in California have to undergo a smog check. For any California air pollution advocates out there, hunt down the hot rods and the muscle cars with V8's in them and get them off the road first, before chasing the Honda, Nissan, Toyota, Mustang, Chevy, VW, BMW turbocharged gearheads, that have emission equipment and create alot less air pollution than what you may imagine. By clicking Accept All, you consent to the use of ALL the cookies. Furthermore, street racing has been around forever, and it isnt going anywhere just because they quiet our exhausts. The sounds between 31 and 60 decibels are considered quiet. The cookies is used to store the user consent for the cookies in the category "Necessary". Do you need a muffler to pass smog in California? Support Vendors who Support the DSM Community. California law requires that all vehicles must be equipped with an adequate muffler to prevent excessive noise from the exhaust system. Thus, black smoke coming out of a tailpipe doesnt mean that you have high emissions. As of right now, there is no smog check program in California that requires a vehicle to have a functioning muffler. However, for some strange reason the last 3 years (since I upgraded the turbo and went DSMLink) they only do an OBD1 test on the Eclipse.strange (but not complaining). Air filter units which do not have any sensors on them and allow for the proper connection of all existing air intake hoses and vacuum lines are not considered emission components in most cases. However, you may visit "Cookie Settings" to provide a controlled consent.