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The only exhaust specialists in Joondalup, we only use the best brands including Manta, Magnaflow, Pacemaker, DBA and Bendix

Browse our FAQ’s below, if you do not find the answer you are looking for contact us for more details

Do I need a stainless steel or aluminised steel exhaust?
The truth is for most standard replacement mufflers aluminised exhausts are the only option. Most manufacturers only supply stainless steel mufflers in straight through configurations which are not suitable for keeping cars quiet.

When it comes to performance exhausts there are lots of different reasons to use either material.

Aluminised Steel systems are significantly cheaper and usually come with a 2-year warranty minimum. They are perfect for those looking for a bang for your buck exhaust or those who tend to trade cars in regularly.

Stainless steel systems carry a minimum 5-year warranty up to a lifetime warranty on some brands. They generally have better quality mufflers in them that last longer than their aluminised counterparts. Stainless steel is also stronger and a must for those using their 4wds to back boats in or doing lots of beach work.

What warranty do your exhausts come with?
  • All standard replacement aluminised exhausts come with a 2-year warranty
  • All custom aluminised work has a 2-year warranty.
  • All custom stainless steel work comes with a minimum 5-year warranty.
  • Branded Systems carry various manufacturers warranties specific to their product.
  • Catalytic converter warranties subject to manufactures discretion.
Why do catalytic converters fail?
Catalytic converters fail for many different reasons. Incorrect Fuel, Leaking fuel injectors, faulty sensors and physical damage are just a few of the more common causes. At Joondalup Exhaust and Brake Centre we can diagnose and repair all these problems and more before replacing catalytic converters.
What size exhaust do I need?
When it comes to exhaust size bigger is not always better! In reality, most stock vehicles do not need twin 3-inch exhaust systems. The best size for your application depends on both engine output and displacement. As a general rule the higher each of these components, the larger the pipes should be. Larger diameter pipes reduce backpressure by allowing more exhaust gas to exit so your engine can breathe more efficiently, giving you more output and better fuel economy. But there comes a point where you begin to create too much room in the pipes and the exhaust gases cool and slow down during their travel.

Having said that, at the end of the day you are the one who has to drive it. Ask us any questions no matter how wild and we will do out best to accommodate you.

What is scavenging?
Scavenging is always present in a well-designed exhaust system as each cylinder discharges its spent gas it creates an area of low pressure behind it when you connect two or more pipes together the scavenging effect is amplified as the gasses pass through the collector. Scavenging is important as it helps draw more spent gas out of the cylinder and allows for a cleaner burn resulting in more power and better fuel economy.
How do headers work?
There are two types of headers. The first is the interference type, these are designed with short primary pipes and will a stepped design on a V8 or 4cyl this will be 4 into 2 into 1. This design will work very well at low to mid-range as the scavenging effect of the short primaries is very efficient, however at mid to high range, they begin to lose their effectiveness. This is where tuned length headers really start to come into their own with equal length and longer pipes they are more able to accommodate the increased gas flow and still have a scavenging effect on the remaining cylinders.
Do I need back pressure?
Well no but you do need a pulse. Let me explain, as each cylinder discharges its gas it causes an area of low pressure behind it and this in-turn draws out the next charge from the next cylinder to fire so if your exhaust is too big the gas isn’t drawn out it just sits in the pipe. The result? Loss of torque but a much deeper note. So, if you want an efficient and more powerful vehicle, bigger is not always best but if you want to be the baddest m#$%^&r f#$%^r in town that we can all hear coming from the next suburb then bigger is better. The choice is yours.

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