Please remember that every vehicle is unique; Manufacturers will sometimes put different ECUs into the same car, and many vehicles have unusual configurations or modifications which are only apparent when reading the ECU. As such, we recommend that you discuss the potential gains and tuning options available directly with your chosen tuning technician.

Topgear Tuning is incredibly proud of the data it has developed over many years, both in-house and in conjunction with the world’s best tuning and modifications companies. The data is constantly being refined, amended, updated and expanded. Topgear Tuning is confident that its data is the most comprehensive ECU tuning and remapping data currently available anywhere in the world.

Whilst every effort is made to ensure the data in above table is up-to-date and accurate, it should only be used as a guide. It is possible that the economy and performance gains available are in excess of those stated above, conversely actual gains may be less than the current data suggests.