As most would know the time line of the development of the engine industry and the computer industry, the engine industry was there first.
Unlike vintage cars, current day vehicles are now equipped with an erasable/modifiable Read-Only memory or Electronic Control Unit (ECU) that - to the extent apart form physical tuning - electronically controls engine performance.
This is where the word "chip" in "chip tuning" comes in - because this refers to the programmatic tuning of existing chip.
The Media Bias on Tuning - Negative as Well as Positive
Following the media, chip tuning and tuning in general has been largely praised and slashed. The advantages of saving fuel for both economic and environmental purposes are appealing, but there are also endless cases of the opposite results: where the engines get too noisy, more polluting, more energy consuming - and where they even get a reduced life time and void of manufacturers warantees.
The fact is that both a positive and negative outcome is possible when dealing with chip tuning. The outcome largely depends on whether this is done by using low quality chip tuning products - or by a professional company with many years of expertise in the field of car tuning.
Green/Environmental Vehicle Tuning is a field in itself, where petrol and diesel vehicles are transformed into consuming natural gases, vegetable oils, battery power or even hybrids.
A professional vehicle tuning company will also have performed endless before and after-tests on an all-wheel/4-wheel drive dynanometer. The dyno, as it is called shortly, is a rolling band substituting a road so that before- and after tuning tests can be performed.
Even with a front wheel or rear wheel drive, performance testing should still be carried out on a 4-wheel drive dyno in order to minimize risks of vehicle damage.