Factory engine tuning software allows a car owner to make changes to their car’s default computer settings. The most common types of modifications include changes to the air-fuel ratio and the ignition timing. These changes are generally used to enhance the car’s performance, but they may also be used to enhance the car’s efficiency. A number of companies make factory engine tuning software, including Beastpower Motorsports, Unichip and Revo. These software programs are used in conjunction with a factory tuning chip. The chip allows the software to connect to the vehicle and make the desired modifications. These types of modifications will void a car’s factory warranty.
For more info, see What to Look for in a Good Engine Tuning Chip