1. Autos

Noise Restrictions & Sound Decibel Ratings For ATVs To Avoid A Ticket

Some little-known facts about the noise level of ATVs and what you need to know about sound level restrictions for the areas you ride in. Check here to see if your ride has too high of a decibel rating.
California Noise Testing Data
Information about OHV noise regulations helpful for Californians to find a muffler for their ATV that will comply with California’s noise emission standards. The list is by make, model and year of the OHV tested. Select the manufacturer of your OHV to link to the list for that manufacturer.
California OHV Noise Regulations
Here's the actual legislation that regulates the noise level on ATVs in California. Also a chart that shows the decibel range your ATV should fall within.
Easy Decibel Check
Many off-road riding areas are starting to crack down on excessive noise. If you ride a stock ATV, you’re almost certain to fall within the acceptable limits. But if you’ve done any intake or exhaust mods —including something as simple as removing the airbox lid — or if your silencer needs repacking, you might be over the line. Here's how to check.
How Loud Is A Decibel? Am I Legal?
An excellent graphic illustration of everyday sounds and their decibel levels. Plus, why it's important to be "legal" even though you're riding out in the middle of nowhere.
Oregon Sand Dunes Noise Restrictions
If you'll be ATVing around the Oregon Sand Dunes, check here first for sound restrictions.
Sound Alert
In recent years, research and development with four-stroke engines has grown; this will continue. These engines and new technologies may help reduce some of the problems of noise — often related to two-stroke engines — but won’t eliminate it.
Stealth Exhaust System
The ATV Stealth Exhaust System fits on any ATV with a four-stroke engine to quiet ATV noise by 50% or more. It can be easily installed according to user preference and rear-of-machine configuration.

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