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.
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.
There are subtle changes on the outside to let onlookers know that this is no ordinary F-150, such as a custom dual-intake hood, a custom front fascia and grille combo, and Shelby badging. For the interior, Shelby adds carbon-fiber trim, billet racing pedals, custom floor mats, and a serialized plaque. For lean-burn spark-ignition engines, an oxidation catalyst is used in the same manner as in a diesel engine. Emissions from lean burn spark ignition engines are very similar to emissions from a diesel compression ignition engine. Upon failure, a catalytic converter can be recycled into scrap.
The difference in fuel economy is, however, more obvious while driving on a freeway. They also do not offer the best performance due to many reasons. If you're looking for an off-road exhaust with