Exhausts, straight pipes & silencers

Exhausts, straight pipes and silencers in Australia: prices and rules

Updated 31 October 2026

An aftermarket exhaust or silencer in Australia costs from about A$22 for a basic universal muffler, A$290 to A$455 for a branded resonator, and near A$970 for a motorcycle slip-on system. Price depends on the inlet size, the material and whether the part is certified for noise. The quickest way to get current prices for your model is a request on BlaBlaPrice.

What the noise and emissions rules say

Noise limits depend on whether the vehicle is certified under Australian Design Rule ADR 83/00. An aftermarket exhaust can be legal in Australia, but only if it keeps the factory emissions equipment in place, and parts that bypass the muffler are not legal. Ask the seller how the part relates to your vehicle's ADR certification before you pay, and keep the documents with the machine.

Warranty and fitting

Fitting an aftermarket exhaust does not automatically void the manufacturer's warranty, as the ACCC explains under Australian Consumer Law. If a fault is directly related to the exhaust, though, it may not be covered, so keep the part's paperwork. Measure the inlet diameter of your current system before you request offers. Listings often use millimetres for motorcycle parts, while many mufflers are still sold in inches, so note both.

Season and how parts are sent

Riding is busiest from spring into summer, so October and November are common months to fit a new exhaust before the warm weather. Ask whether the price includes postage to Sydney, Melbourne, Brisbane, Perth or Adelaide, because long pipes and large silencers are bulky to post and can cost more than the part itself.

What to put in your request

Give the motorcycle make, model and year, the part you need (silencer, straight pipe, tip or full system), the inlet and outlet size, and the material you prefer, such as stainless steel. Say how loud you want it, your budget and your city.

BlaBlaPrice is free for buyers. Describe the part in your own words in the chat, and add a photo of the old exhaust if it helps. The AI asks for missing details and looks through Australian sellers' websites and price lists, then shows the prices and businesses it found. Registered sellers reply in the chat with their own price, terms and delivery, and your contact details stay hidden until you choose to exchange them. For related parts, see motorcycle parts or shock absorbers and suspension.