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.
Decades later, Gale and the team are not only innovating, patenting products, and setting the bar for aftermarket performance manufacturers, we're also sharing our secrets with the world. The 6.2-liter LS3 V8 was factory rated at 415 horsepower and 415 lb-ft of torque. It is used to expel harmful gases and substances from your engine