For many Sacramento-area riders, a new exhaust, tuner, or custom seat is part of making a bike their own. California, though, has some of the country’s strictest rules on motorcycle exhaust and emissions equipment. Before ordering parts, it helps to know how those rules work and how upgrades fit into your motorcycle insurance.
What California Rules Generally Cover
Noise and Exhaust
California law generally prohibits modifying a motorcycle’s exhaust in ways that make it louder than the original equipment. Newer motorcycles are also generally required to have exhaust systems that carry the proper federal noise label. Rules can change, so check current requirements.
Emissions-Related Parts
Aftermarket parts that can affect emissions, such as certain tuners, air intakes, and exhaust components, generally need California Air Resources Board approval to be street legal. Approved parts usually carry an Executive Order number. Parts labeled “for off-road use only” may not be legal on public roads.
How Upgrades Fit Into Your Coverage
Are custom parts covered?
Many motorcycle policies include a limited amount of coverage for custom parts and equipment, with the option to add more. If you’ve invested heavily in upgrades, the base amount may not reflect what you’ve spent.
Should I tell my agent about modifications?
Yes. Listing upgrades and keeping receipts helps your coverage match your bike and can make a claim smoother.
Can illegal modifications affect a claim?
Parts that don’t meet state requirements can raise questions after a crash, including in fault discussions. Keeping your bike street legal helps protect both your riding and your claim.
Before Your Next Upgrade
- Check whether emissions-related parts carry a CARB Executive Order number
- Keep exhaust changes within California noise rules
- Ask whether your custom parts limit is high enough
Our post on California traffic patterns covers more about riding and driving here. American Diversified Insurance in El Dorado Hills, CA can review your motorcycle coverage after your next upgrade. Policy terms vary. Riders across El Dorado Hills, CA and the Sacramento region can reach out to American Diversified Insurance anytime.
