Exhaust system repair

Exhaust system repair in Australia: prices, rules and how to book

Updated 4 November 2026

A basic exhaust repair in Australia often costs about A$100 to A$250 when the fault is straightforward and caught early. A stock-equivalent replacement typically runs from about A$300 to A$800, and a cat-back system from A$800 to A$2,500. For a quote for your car, describe the fault on BlaBlaPrice.

What the price depends on

The part that failed is the biggest factor. Small leaks and loose mounts are usually inexpensive, while catalytic converter replacement or long pipe damage can cost much more. Complete replacement quotes are often given before labour, so ask for the labour cost separately. A diagnosis to find where the fault is may be a separate charge.

Licence and rules to check

In New South Wales, a motor vehicle tradesperson certificate is needed to do repair work on motor vehicles, even for someone who holds a motor vehicle repairer licence. In Western Australia, exhaust system work is one of the repair classes covered by the motor vehicle repairer rules. Ask the workshop to show its certificate or licence before work starts.

Season and timing

November is late spring, a good time to check the exhaust before the summer driving season. From December to February, hot weather and long trips put more strain on joints and hangers, so a small fault can grow quickly. Winter, June to August, brings cold starts and wet roads, which can make rust and loose joints more obvious.

Mobile service or workshop

Some mechanics come to your home or work, while others need the car at a workshop. Ask whether a call-out is charged, whether the quote includes parts, and how long the work will take.

What to write in your request

Name your car make and model, the symptoms (noise, smell, loss of power or a rattle), and where the noise comes from. Say whether you want a repair or a replacement, whether you will supply the parts, and your suburb or area. Add your deadline and budget.

On BlaBlaPrice you describe the fault in your own words in a chat, and you can add a photo. The AI asks for missing details and looks through sellers' websites and price lists in Australia, then shows the prices and workshops it found. Sellers registered on BlaBlaPrice receive your request and reply in the chat with their own price and terms. Your contact details stay hidden. Start with the request field on the home page, or see Car & motorcycle servicing.