This is achieved by burning off the excess hydrocarbons which result from the extra-rich mixture required for a cold start. Slightly lean of stoichiometric, the exhaust gases from the engine contain excess oxygen, the production of NOx by the engine increases, and the efficiency of the catalyst at reducing NOx falls off rapidly. However, the conversion of HC and CO is very efficient due to the available oxygen, oxidizing to H2O and CO2. However, the efficiency of the catalyst at reducing NOx is good, and the production of NOx by the engine decreases.
Beyond these incremental advantages, there’s not much to tell cat-back and regular exhausts apart, as they are commonly made from the same types of materials in roughly the same shape. Most newer vehicles have electronic fuel injection systems, and do not require air injection systems in their exhausts. Instead, they provide a precisely controlled air-fuel mixture that quickly and continually cycles between lean and rich combustion. Depending on your make and model, cat back exhaust systems can lead to an increase in fuel economy. The engine doesn’t have to work as hard pushing exhaust gases through the piping which reduces its load and leads to higher efficiency and MPG. For car enthusiasts and performance drivers, upgrading the exhaust system of a vehicle is a no-brainer.
Federal Catalytic Converters are not legal for sale, installation or use in the state of California. It should be noted that a split system will often provide an aggressive noise increase, and some designs will split the two pipes to opposite sides of the vehicle. If you are looking to save a little money but still get most of the benefits of a cat back exhaust system, however, aluminized steel may be the way to go. Made from traditional steel that’s been coated on all sides with aluminum-silicon alloy, these systems are very strong thanks to the metallurgical bond which still provides a level of corrosion resistance. While the aluminum coating reflects heat well, the steel can corrode if the aluminum layer is chipped or scraped off. Most cat-back systems will come in either an aluminized or stainless steel version.
Most end up reducing performance and adding weight, or worse yet – adding cost and doing nothing at all. Find out more about this topic by reading our blog on Why Exhaust Drone Silencers Aren’t All They’re Cracked Up To Be. RealTruck is your home for the best products to outfit your build for unforgettable adventures.
However, it’s always a good idea to consult with professional mechanics like the crew at Bradley’s Auto Service to make sure everything checks out. As a vital touch point to the driving experience there is something truly special about dropping a gear and hearing the roar as you disappear. We fear most the time when we are enveloped in silence in our electric bubbles. Our mission forever more is to push off that date and engineer, design, and manufacture the world’s greatest exhaust systems, so that you will always be able to enjoy your car to the fullest.
A dual exit on the other hand, is just a single exhaust system but with two exhaust tips. This is because, with a cat-back exhaust system, you will experience a significant increase in your fuel economy. The tone provided by different cat-back exhaust systems varies from one system to another.
There is a range of muffler types you can choose from with a cat back exhaust system with most people opting for a glasspack or straight-through muffler. Both of these options are designed to work well within the system to reduce back pressure. Deciding to purchase a performance exhaust system for your car is no easy task.
Make sure your Subaru, Nissan, Honda, or Toyota is outfitted with a top notch exhaust system from Racing Exhaust System. Some are ideal for normal vehicles while others are better for high-performance engines. Products manufactured by REMUS without (EC-)approval are only eligible for usage at motor sport events or tests within the meaning of KFG 1967.
You can also add other upgrades to give your Charger an extra performance boost. Visit the AmericanMuscle headers and exhaust accessories pages to find parts that fit your new cat back system. Mishimoto offers a wide selection of exhaust systems, including cat-back exhausts, performance exhaust systems, and aftermarket exhaust options, designed to enhance your vehicle's performance, sound, and style. Our exhaust systems are engineered with precision and constructed using high-quality materials to deliver improved exhaust flow, increased horsepower, and an enhanced driving experience. Enhance the sound and performance of your Subaru with our premium cat back exhaust systems. Designed to replace the factory exhaust system from the catalytic converter rearward, these cat back exhausts offer a deeper, more aggressive exhaust note while reducing restriction for improved airflow.
Unlike your stock system, CORSA exhaust systems don't utilize performance-robbing restrictions that reduce airflow, such as chambered designs, baffles or spring-loaded valves. With wider tubing and our mandrel-bent design, your new full exhaust system will allow for reduced backpressure and provide cleaner oxygenized air to your engine. You'll see benefits like increased horsepower, torque boost and better fuel economy.
Exhaust systems also play a role in reducing noise levels, improving engine performance and reducing fuel consumption. To get the power level up to 785 hp, Shelby installs a Ford Performance supercharger, as well as a new carbon-fiber air intake tube, high-performance fuel injectors, and an aluminum heat exchanger. A Borla (cat-back) exhaust system rounds out the list of powertrain modifications.
This will improve the throttle response and acceleration in naturally-aspirated cars. The same reaction will be found in cars with forced induction with the addition of less turbo lag or supercharger response. Cat-Back exhaust systems are the most popular, coveted, and sought-after modification that enthusiasts will initially perform because of the main reason, and that is the sound. All of the brands we carry offer exhaust systems that are the result of decades of research and development.
An upstream air injection point, ahead of the catalytic converter, is also sometimes present to provide additional oxygen only during the engine warm up period. This causes unburned fuel to ignite in the exhaust tract, thereby preventing it reaching the catalytic converter at all. This technique reduces the engine runtime needed for the catalytic converter to reach its "light-off" or operating temperature. Many vehicles have a close-coupled catalytic converter located near the engine's exhaust manifold. The converter heats up quickly, due to its exposure to the very hot exhaust gases, enabling it to reduce undesirable emissions during the engine warm-up period.
The 2024 Roush Super Duty stands as a testament to Roush Performance's dedication to engineering excellence, blending raw power with refined style. Whether it's for work or play, the Roush Super Duty promises to deliver an unparalleled driving experience, making every journey memorable. If the above ten reasons to consider a cat back exhaust system have you thinking it may be right for your car then Sandgate Auto Electrics are the people to call. Your neighbours may disagree that this is a benefit, but as we’ve mentioned earlier, and depending on your muffler choice, your vehicle will have a lot more grunt. This may well be the area you need to do the most research into and the sound quality, and type, can range drastically per system. At Walker, it's more than peace of mind in knowing we lead the industry with unparalleled level of compliance.
You get the only the best with SPD's 3" resonator delete pipes. These aluminized steel pipes are 3" .. SPD's high performance resonator cat-back pipe replaces your factory resonator pipe with a true 3" p.. The welds and craftsmanship are top notch, and the tips look perfect.
By running pipes from the catalytic converter to the muffler and from the muffler to the exhaust tip, cat back exhaust systems improve exhaust gas flow, providing small performance boosts. However, your performance gains may be limited if your catalytic converter restricts gas flow, as a catback exhaust system is installed ‘downstream’ of the converter. Header-back systems are increasingly rare, namely because of modern emissions systems. Since removing your vehicle’s factory emissions components is highly illegal, the previous two options are more common. However, header-back systems are still available for some older, pre-emissions applications. In these cases, header-back systems offer more performance and volume than cat-back or axle-back systems