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Here at Nexus we specialize in tailor made performance and economy remap chip tuning for every model of car, van, truck and lorry including all the latest models. We use the latest ECU remapping Chip tuning technology available. All our remapping is developed in-house using some of the very finest tuning software, tools, and equipment that are currently available. We collect the information about your vehicle from its ECU using dedicated hardware, then program the files back into your Vehicle’s ECU and your car is tuned
ECU Remapping/Chip tuning as its known, enables our engineers (mobile) to tune all aspects of your vehicles performance and engine. You can expect to get an instant increase in overall performance by up to 40% depending on the make and model of your vehicle. The Nexus engineers aim to achieve the best advantages in torque, performance and fuel economy.
Nexus ECU remaps will optimize the performance of your car, helping you to maximize your driving pleasure. Engine tuning, for petrol or diesel engines, will change your driving experience. There are so many limits on driving these days. Even your car’s intended performance is restricted because car manufacturers have to allow for drivers who do not adhere to service schedules and who use sub-standard fuels. The good news is that ECU remap software can free you from these limits.



Most modern vehicles contain an ECU (or Engine Control Unit) that is effectively a small computer which controls how the engine works. Vehicle manufacturers de-tune the engine by setting the software on the ECU to default before sending the vehicle out. This is done due to the manufacturers having to sell their cars all over the world, this means that the software settings on the ECU must take into account different climates, laws & restrictions and varying quality of fuels. Vehicle remapping is basically the modification/replacement of the manufactures default software on a vehicles ECU.




A vehicle remap replaces default software on the ECU, overwriting it with new software which can be programmed to optimize the cars overall performance. This is known as vehicle remapping because the ECU is essentially a program that controls how the engine works. When your car is remapped, the tuned software is plugged into your cars serial port (or OBD port) which then overwrites the engine map with the new version to enhance engine performance. The ability to flash directly through the OBD has brought the tuning industry on leaps and bounds, with constant development on the engine now being much quicker via the flash process, it has enabled Celtic Tuning to develop some of the best software in the world.



Many people say that ECU remapping doesn’t affect fuel usage, however this is not technically true. Because of the process involved in ECU remapping more fuel is going to be consumed in order to produce the increase in power. If the car is driven in an enthusiastic way after the remap has been carried out then the fuel economy will not increase (and in some cases may decreases). If, however, the driver modifies their driving style to make the most of the increased power and torque throughout the rev range then fuel economy can be increased. A good example of this could be that the improvement in torque produced by the engine after remapping means the driver no longer has to drop down a gear to maintain speed on an incline or may not have to change gear as frequently in traffic. All of these little things add up to an improvement in fuel economy.