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Using the latest technology from Byteshooter, CMD Technologies and Alientech, we can remap the ECU of most post-1999 vehicles, including cars, commercial vehicles, motorhomes and agricultural vehicles. Petrol and diesel vehicles can be modified but diesel engines offer the best results. Our state-of-the-art software will even modify the latest tricore ecu's.
In simple terms, the ECU contains a circuit board of electronic chips which control the way in which the engine behaves. Remapping these chips can therefore alter functions such as ignition, fuelling and turbo boost, chaning their response and behaviour, ensuring that each performs to its optimum.
1. Increased power (Bhp) and torque (Nm) by up to 30%
2. Improved acceleration with flatspots removed
3. Guaranteed savings on fuel consumption
This is the most important factor for most people today as the cost of fuel keeps on rising. Remapping can be specifically carried out to improve either performance or fuel consumption, although performance remapping will, by default, improve consumption, provided that the car is still driven under the same conditions as those prior to the remap.
4. Safer overtaking
5. Improved towing capability
6. Enhanced throttle response, smoother power delivery with less gear changes
7. Can be done in conjunction with our DPF removal service to eliminate problematic diesel particulate filters.
Motor Mods have been established for 32 years. We have been remapping for more than 10 years and were one of the first companies to offer performance tuning boxes before remapping was available.
We have a good relationship with our local car dealerships and much of our work is carried out on brand new vehicles. For retail customers, we have premises which are within easy reach of the M5 with workshops, a waiting area, small shop and demo vehicle. We also have a courtesy car available if required.
Most remaps can be done whilst you wait but it may be necessary to keep some vehicles for longer. We also offer a mobile service for ecu remapping in some areas, including Cheltenham, Gloucester, Stroud, Cirencester, Evesham, Swindon, Hereford and Worcester.
Importantly, we keep all your original mapping data in case you would like to return the car to standard at any time (for example, if you sell the vehicle). We offer this service free of charge.
We also offer a mail order service for remapping. You post your ECU to us, we will remap it and send it back! Simple!
Most vehicles can be remapped, including Alfa Romeo, Audi, BMW, Chevrolet, Chrysler, Citroen, Daewoo, Daihatsu, Dodge, Fiat, Ford, Honda, Hyundai, Isuzu, Iveco, Jaguar, Jeep, Kia, Land Rover, LDV, Lexus, Mazda, Mercedes, Mini, Mitsubishi, Nissan, Peugeot, Range Rover, Renault, Saab, Seat, Skoda, Subaru, Suzuki, Toyota, Vauxhall, Volkswagen / VW, Volvo.
Prices vary depending upon the vehicle make, model and year of manufacture but prices start from just £199. Please call us today for a quotation on your vehicle and start saving money faster.

Ford Transit Connect 75bhp
BHP increased to 110bhp average
NM gain - 47NM
Volkswagen Passat 2.0TDI CR 140bhp (2010 model)
BHP increased to 175bhp average
NM gain - 58NM
BMW 318 E90 D 143bhp (2010 model)
BHP increased to
185bhp average
NM gain - 80NM