Dynacraft 8802-33 Owner's Manual page 27

Cal. Veh. Code, § 407.5 (CALIFORNIA)
DISCLOSURE (IF APPLICABLE)
YOU MAY NOT MODIFY OR ALTER THE
EXHAUST SYSTEM OF THIS ELECTRIC
DIRT BIKE TO CAUSE IT TO AMPLIFY OR
CREATE EXCESSIVE NOISE PER VEHICLE
CODE SECTION 21226, OR TO FAIL TO MEET
APPLICABLE EMISSION REQUIREMENTS PER
VEHICLE CODE 27156.
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