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.

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.

Cat-back exhaust systems replace all the components after the catalytic converter, sometimes referred to as the cat. Now you can upgrade your downpipe or mid-pipe depending on your applications. Some cat-back systems will include a mid-pipe depending on your cat layout. And when you want to make more power and take your vehicle to the next level, then you will be ready for an exhaust manifold. Available only from Mallett Performance Cars, this exhaust system is made from 304 stainless steel and features the highest quality mufflers and resonators.

SPD’s 304 stainless high performance resonator cat-back pipe replaces your factory resonator pipe wi.. SPD’s high performance stage 2 resonator cat-back pipe replaces your factory resonator pipe with a t.. We have redesigned our GX Series catback systems and will have them available to ship at the end of .. The exhaust system is one of the most important parts of any vehicle. It protects the driver and other nearby cars almost as much as the braking system does. If you want your car to take care of you, you need to take the best care of it.

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