Fuel consumption mainly depends on driving style. When your vehicles is tuned for maximum performance and you use the added power all the time, you could expect an increase in fuel consumption. However, in most cases fuel consumption stays the same or even improves.
When the vehicle is tuned specifically for fuel economy you could expect up to 15% better fuel consumption and up to 20% more power (Turbo Diesel Vehicles).
By Veloce Performance
ECU Remap vs Chip
ECU Remapping or also known as Software Upgrades, done correctly, will always be the better and safer way of optimising an engine. Much more parameters can be optimised than...