By manipulating your vehicles spark timing and fuel curve the Cortex can bring out hidden power that is usable in many different situations such as towing, racing, and day-to-day driving. Tuning options are available for different fuel types and octane levels to get the best package for your application. The Cortex can supply all the other popular options that the Flashpaq does such as reading and clearing trouble codes, modifying shift points and transmission performance, cooling fan temperature adjustment, and capabilities for many aftermarket parts such as cold air intakes, exhaust kits, and more. The advantages that the Cortex brings to your vehicle in terms of usefulness, performance gains, and ease of use is why it is one of the most popular tuning products on the market.