Most designs of the time therefore included secondary air injection, which injected air into the exhaust stream. This increased the available oxygen, allowing the catalyst to function as intended. Cat-back exhaust systems replace every component behind the catalytic converter, including most piping, mufflers, resonators, and tailpipes.

One issue is that the system can become clogged with dust and debris over time, causing reduced performance. This can be remedied by regularly cleaning the system with compressed air or a soft brush. Finally, it's always a good idea to check for leaks after installation.

Although phosphorus is no longer used in gasoline, it (and zinc, another low-level catalyst contaminant) was widely used in engine oil antiwear additives such as zinc dithiophosphate (ZDDP). Beginning in 2004, a limit of phosphorus concentration in engine oils was adopted in the API SM and ILSAC GF-4 specifications. Although catalytic converters are most commonly applied to exhaust systems in automobiles, they are also used on electrical generators, forklifts, mining equipment, trucks, buses, locomotives, motorcycles, and on ships. They are even used on some wood stoves to control emissions.[5] This is usually in response to government regulation, either through environmental regulation or through health and safety regulations. Custom setups, especially for vehicles that do a lot of off-roading are also available.

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.

Check out our cat back exhaust category and you’ll find systems that are built from stainless or aluminized steel. They also come in different tubing diameters to deliver varying ranges of exhaust volumes. Some of our exhaust kits even come with resilient powder coatings, so you can get an upgrade that matches your Charger’s appearance. Thanks to the large selection of products at AmericanMuscle, you can definitely purchase a cat back exhaust that can bring out your vehicle’s true high-performance potential.

Advanced 3D scanning tools and cutting-edge software provide our engineers with a high-resolution digital model of the Audi B9 S4 chassis. This data is then used to maximize the exhaust size for flow and optimize all available space for the perfect catback fitment. CORSA branded exhaust systems are backed by a Limited Lifetime warranty for as long as you own your vehicle with proof of purchase. The new exhaust sounds perfect, a marked improvement over stock. It is not too loud - I use the car as a daily driver and drive in capital beltway traffic.

The buyer is solely responsible for obtaining the permissions where applicable required by the applicable law for the intended purposes/usage. In no event a whatsoever claim shall be constituted by the buyer against REMUS and its affiliates arising from or in connection with required approvals for public road usage. Take your stock or modified Colorado/Canyon to the next level with a Mallett Performance Cars exhaust system today.

I do live in a residential community and want to keep things civil with my neighbors...so I went with the resonated/muffled setup. Orders of $299.99 or more ship free within the continental U.S.Shipping to Alaska and Hawaii is additional and not included.We do not ship international at this time. Enter your email address above, to be notified of new products released. Sign up to our newsletter and stay up to date on all the latest news, products and events.

To make a very long story short so far so good I’m happy with the product. I had 1 dinged tip out of the 4 that prob happened during shipping n y’all already have a new replacement tip on the way so customer service is great as well. Only thing I would change as previously stated would be a little more noise but again that wasn’t my main goal to being with. Hats off to what y’all do and please make more B9 Audi S4 parts n I’ll happily buy them. I regret not buying the IE intake but hey sometimes we all make poor decisions lol. Every vehicle-specific CORSA product is engineered and designed to match the unique properties of the vehicle it is designed for to deliver perfect fitment and performance.

Invidia offers products known for their outstanding quality, and each finished piece is a work of art that sets them apart from the competition. For anyone looking to take their vehicle to the next level, Invidia is a name to remember. So, a cat back is used to indicate an upgrade to the stock exhaust system. And anyone looking to improve their ride should strongly consider a cat back exhaust system. This pipe will connect your mk1 downpipe that we sell for&nbsp