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Established in 1997, Kirrawee Mufflers brings together the best in exhaust and metal fabrication expertise. Whether you see your vehicle as a means of transport, a tool of employment, a recreational joy or an art form and an expression of self, we’ll look after you. We supply, customise, service, fit and repair a huge range of systems and enhancements. We do this while maintaining a continued focus on each client’s needs and budget.
It plays a critical role in the efficient operation of your vehicle by removing hot poisonous gases, reduces engine noise and improves your engine's performance and fuel economy. Most systems are made from aluminised coasted mild steel which resists corrosion (usually come with a 2yr warranty). Components are also available in stainless steel to prolong the life of your system (usually come with an 8yr warranty). We deliver a full range of services: we are a one-stop shop. We only stock the best in available brands.
XForce, Redback, Pacemaker, Advance Headers, SS Inductions and Tunit are our preferred suppliers. We encourage our customers to do product comparisons if they are unsure, as we are confident we use only the best. We will not fit sub-standard stock! For those who prefer it, we also fabricate our own systems. In this regard we are the most affordable in the area by far. We can meet all your standard, custom and performance exhausts needs. For advice and information, all manner of systems and components, whether on a tight budget or not, we can help.
Bellows, Catalytic Converters, Chrome Tips, Extensions, Extractors, Filters, Headers, Pipes, Purifiers, Silencers, Spark Arrestors, Tubes, WRX
Bending, Cleaning, Customising, Dyno Tuning, Fabrications, Installations, Machining, Maintenance, Manufacture, Modifications, Noise Level Testing, Repairs, Replacements
Autotech, Berklee, BMW, Carline, Daewoo, Exhaust Systems Australia, Ford, HiTech, Holden, Hurricane, Kia, Lukey, Mazda, Mercedes-Benz, Mitsubishi, Nissan, Pro Ex, Redback, Subaru, Toyota, Walker
Big Bore, Direct Fit, EFIs, European, Hi Flow, Mandrel Bent Systems, Performance Systems, Pressed Systems, Stainless Steel, Standard, Twin Systems
A Grade, Certified, Factory Authorised, Guaranteed, Inspection Station, Insured, Licensed, Registered, Warranties
4WDs, Buses, Caravans, Cars, Domestic, Heavy Vehicles, Imported, Light Trucks, Motorcycles, Motorhomes, Tractors, Trucks, Utes, Vans
fit, repair, customise, service, supply
Systems are made from aluminised coated mild steel or stainless steel.
The gases and heat produced by the engine travel through the exhaust manifold, into the engine pipe, through the catalytic converter, intermediate assembly and finally the rear muffler. More information on each of these components is provided below.
Situated at the front of the system and bolted to the engine, the manifold guides poisonous gas and heat into other components of the system. Manifolds are usually made from cast iron, as they must endure temperatures of up to 1300 degrees Celsius. Due to this heat however, even the best of manifolds are prone to cracking at times. In some vehicles, the manifold is replaced by 'extractors', which are also known as 'headers'.
Connecting the manifold to the catalytic converter, the engine pipe must withstand heat of up to 1100 degrees Celsius as it channels the heat and poisonous gases into the catalytic converter.
This component converts the harmful gases into carbon dioxide, water, nitrogen and oxygen. The most common type of converter is the three-way, so named because it contains a honeycomb like biscuit that is impregnated with three precious metals. It also must withstand extreme temperatures. A standard operating temperature is around 200 degrees and can reach 600 to 800 degrees when operating at optimum efficiency.
Containing a resonator at front and/or a muffler at rear, the intermediate assembly reduces noise.
As part of the intermediate assembly, the intermediate pipe (also known as the over axle pipe) connects the front assembly to the rear muffler.
The final part of the exhaust system, this is the part of the system most people recognise as being a muffler. The rear muffler is where the exhaust gases leave the vehicle both visibly and audibly. It is very susceptible to corrosion due to condensation forming in this part of the system (particularly in cars travelling short journeys).
A tail pipe is the rear-most (or final) conduit in the system. These can also be complimented with chrome or stainless steel exhaust tips for extra visual appeal.
These are used to attach the exhaust system to the vehicle and reduce the problems that would otherwise be caused by vibration. Wear and tear is unavoidable with these so it is important to have these checked when your vehicle is being serviced.
