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.

Or are you a more relaxed driver who takes the roads less travelled? Knowing your driving style will help you pick a cat back that not only sounds good but also performs well. Lastly, you need to decide what material you want your cat back to be made out of. If you’re looking for a way to enhance your car’s performance and style, a cat back exhaust may be the perfect solution. All 1993, 1994, 1996 and newer vehicles that were manufactured with California or 50-State emissions certification.

Because the success of a catback exhaust system&nbsp