Installation was easy, and the craftsmanship and welds are very high quality. Mishimoto exhausts are constructed of large diameter mandrel-bent pipes for maximum flow. Mishimoto exhausts are perfectly engineered to provide an aggressively rich tone with no annoying highway drone. In general, though, you can expect to pay anywhere from $1000 upwards for a good cat back exhaust system. That may seem like a lot of money, but keep in mind that a cat back exhaust can provide a significant boost to your car's performance and help it to stand out from the crowd. Typically a cat-back exhaust upgrade can be swapped with the original exhaust without any modifications.
As a result, the glass pack mufflers end up producing sounds that are more aggressive and louder than the straight-through muffler. This is a little bit different from most original exhaust systems. Today we’ll focus on the cat-back exhaust systems and what makes them stand out. There are the header-back, turbo-back, axle-back and cat-back systems.
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.
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.
From cat-back exhaust systems, 2005 duramax egr delete emissions compliant catalytic converters, performance mufflers to custom exhaust parts, buy the automotive part your vehicle needs. In addition to boosting your horsepower, cat-back exhausts can make a massive difference to the sound of your car, especially if you choose exhaust tips designed for acoustics. Basically, catback exhaust systems upgrade regular exhausts, improving the flow of exhaust gases and the performance of your engine with wider pipes and smoother bends.
To maintain catalyst efficiency, the air–fuel ratio must stay close to stoichiometric and not remain rich or lean for too long. All of Milltek's performance exhaust systems are manufactured from T304L stainless-steel