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.

Automotive Performance Systems Inc. (APS) and its NEUSPEED®‚ and Neumann Distributing divisions are your number one source for aftermarket import performance products! We carry a large inventory of all the parts featured in our catalog and on our website. Our customer service is unrivaled, with the most knowledgeable support team in the industry. All aFe exhaust systems are engineered and manufactured in our Corona, California facility. The price of a cat back exhaust system can vary widely depending on the make and model of your vehicle, the materials used, and the complexity of the design.

Fine-tune your ride for the best performance and aesthetic today. Steeda offers the largest complete line of Ford-based parts and accessories for your build and is considered the largest privately owned Ford performance-based operation in the world. If you've been searching for the perfect place to purchase Ford automotive performance parts for your vehicle, then you're at the right place!

A spare set of 19″ Y-spoke alloy wheels is included in the sale, and they are shod with Bridgestone tires. The car is finished in Panther Black Metallic (80U) and features a GXP-specific front bumper cover and rear diffuser as well as a sunroof, fog lights, dual hood scoops, fender vents, and a rear spoiler. Imperfections are noted on the decklid and on a door and are also shown in the gallery. Our expansive inventory of Subaru performance parts ensures your vehicle not only performs at its peak but is also supported by our unparalleled customer service. At SubiSpeed, we understand that upgrading your Subaru is not just about selecting the right parts