There are many different types of custom exhaust systems to purchase for your car. If you're looking to improve the performance of your car, an exhaust system is a great investment. Just like it is important for a car to breathe in properly, it's just as important for a car to get rid of it's waste gases. These include carbon monoxide and other toxic chemicals, which have the potential to cause a lot of harm if not removed from the car. The most basic car exhausts simply consist of a pipe carrying these by products from where they are produced in the engine, to the rear of the car where they are ejected, saving the passengers from the health risks of inhaling the poisonous gases. Restrictions will result in back pressure.
Most cars straight out the factory do not come with free flow exhaust systems and use smaller diameter piping than the car actually needs adding a restriction. The materials are also not the best. If you look at the branches manifold you will see that the bends are not bent in a mandrel manner allowing air to flow better. In addition the car has to pass emissions testing and has to be environmental friendly. Therefore a catalytic converter has to be fitted into the factory as well as silencers. Having a decent car exhaust put in can yield anything from 3KW to 11KW in most cars. That is a lot more KW from such a small change to your system! Along with a cold induction system, you get more power for your rand than many other mods! Believe it or not, changing the exhaust systems can give your engine a different sound all together. Some drivers opt to change their exhaust systems to models which produce more sound, often a feature on performance cars used for racing or general recreation. By reducing or increasing the number of silencers, you can make your car purr like a kitten or roar like a tiger.
When you're looking at an exhaust, you always want to make sure it's made from high end products. The reason why there's room for improvement on a stock car, is because they don't use the best products available. There are some features you should look for when selecting an aftermarket exhaust system. The first is the type of material it's made of. Any of the better systems will be either coated steel or stainless steel. The standard stainless steel alloy for a high quality exhaust system is T-304, steel alloyed with about 10% nickel and 20% chromium for strength and corrosion resistance. You may also find exhaust components made from T-409 stainless.
While this is a good material, it doesn't have the strength or corrosion resistance of T-304, so it will exhibit discoloration over time and won't last as long as a system fabricated from T-304. T-304 is harder to work with and more expensive to procure, so be prepared to pay a premium to buy a system made from it. As with many things in life, if you want high quality, be aware it costs more. Another advantage of stainless steel as an exhaust material is that it conducts heat less readily than does mild steel. This serves as a thermal barrier, keeping exhaust heat inside the exhaust tubes. If you are investing in headers or exhaust manifolds made form stainless, the benefit of the lower thermal conductivity will be better exhaust velocity.
The higher velocity will give better scavenging, so you'll get more complete exhaust flow out of your cylinders. This means more efficient engine operation, increased power and better gas mileage. A new high performance exhaust system is one of the fastest, most cost effective performance enhancements you can make to your vehicle. In addition, you'll reduce weight, save gas, increase longevity, make it look better, and oh, that sound! When it boils down to it, there is no right or wrong in the exhaust system you choose. There is, however, stupidity.
Such as putting a 3-inch pipe on a 4-cylinder car. Though, it all depends on your personal preference. You want to make sure you are going to get the right size of piping. Your performance should always a crucial factor in your decision. You also want to make sure that you are going to get the tone you want, whether it be a subtle tone or a nice deep tone. As well, you have to make sure that the system you want is available for your vehicle. After you have the right system for you, your next step is to look into the majestic headers. When all that is said and done. You are going to want to look into your intake system. After all, more air in plus more air out equals greater power.