Another example of this is when cars have a “SPORT BUTTON” or “ECO BUTTON” this is either a switch able ECU map or the car has two ECUS’. Also with the pressure put on manufacturer to produce cars with lower exhaust emissions not higher MPG but lower emissions because of this cars, vans and trucks are not running to their best ability. Also because for example on a “VW GOLF” it is sent from factory with a ECU file that is detuned as theses cars are sent all over the world having to cope with counties at -25 to countries at +45. The quality of fuel can also vary enormously in different parts of the world. This is why when we REMAP your ECU we fine tune the parameters on the ECU to unleash your cars, vans or trucks true potential in less than 3 hours.