In Australia, a road-registered motorcycle must keep meeting the Australian Design Rules (ADRs) it was built to, including noise. An exhaust that makes the bike louder than its standard can earn a defect notice.
Choosing a Harley ADR compliant exhaust
- Look for products sold as ADR compliant or with compliance markings.
- Keep the paperwork with the bike.
- Race-only systems are for off-road use.
Rules and enforcement can change, so check with the Department of Transport WA before fitting. Ask us which systems in stock are sold as road compliant.
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