4WD Dyno in Berkshire

Unlocking Real Power 

4WD Dyno in Berkshire

Unlocking Real Power 


We are Onyx Performance!

We are an ECU Remapping Specialist and Tuning house based in Berkshire offering a National 4WD Dyno Tuning Service at our workshop. 

Our services include a wide variety from Performance tuning to engine and gearbox servicing, dyno runs, window tinting and engine carbon cleaning. Using some of the most advanced and sophisticated equipment available, combined with years of experience we are able to tune the vast majority of vehicles on the road today. 

We offer engine modifications including turbo, supercharger, intercooler, exhaust, induction and suspension upgrades being innovators of performance tuning we work with the top aftermarket part suppliers. 


Rolling road tuning, dyno remap, custom dyno tuning

4WD Rolling Road Dyno

We’ve Tuned 1000’s of Vehicles

We’ve Tuned 1000’s of Vehicles

We have a state of the art 1500hp 4WD dynamometer with full engine analysis capabilities to ensure our developments are providing you with the best power gains on the market whilst maintaining optimum reliability for your engine via our Dyno ECU Remapping service.

Would you like to find out what your car is pushing? Good, we also offer power runs on our Dyno.

supercar tuning, supercar remap, performance car remap.

We’ve Tuned 1000’s of Vehicles

We’ve Tuned 1000’s of Vehicles

We’ve Tuned 1000’s of Vehicles

We have tuned 1000s of cars and work alongside some of the leading tuning companies in the world. We have experience of over 10 years in the tuning industry. 

We have worked on Ferrari's, Lamborghini's, Mercedes AMG, Maserati's, Porsche's, Audi's, BMW's and the list goes on...

Abarth, Alfa Romeo, Audi, Bentley, BMW, Chevrolet, Citroen, Ferrari, Ford, Honda, Hyundai, Infiniti, Jaguar, Jeep, Kia, Lamborghini, Land Rover, Lexus, Lotus, Maserati, Mazda, McLaren, Mercedes Benz, Mini, Nissan, Peugeot, Porsche, Rolls Royce, SAAB, Seat, Skoda, Toyota, Vauxhall, Volkswagen, Volvo ECU Tuning

DPF Solution

We’ve Tuned 1000’s of Vehicles

DPF Solution

Our engineers are dedicated to developing the best ECU Remapping solutions for your vehicle specialising in DPF solutions, whether your car is in limp mode or is lagging power, we can fix it with a cost effective solution. 


- Increased performance

- Increased efficiency (MPG)

- Less turbo lag

- Reduced maintenance costs

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Contact Us

Get in Touch!

We are based in Berkshire serving all National areas including Slough, Beaconsfield, Stoke Poges, Farnham Royal, Denham, London, Hounslow, West London, Heathrow, Hayes, Uxbridge, Staines, Feltham,  Windsor, Maidenhead, Reading, High Wycombe providing Engine modifications, Engine & Gearbox Servicing, Window Tinting, Carbon Cleaning, DPF Cleaning, Dyno run and ECU remapping on our 1500hp 4WD Rolling Road.

Onyx Performance

Berkshire, United Kingdom

We are located: 15 minutes from Central Slough 7 minutes from Central Maidenhead 10 minutes from Central Windsor 18 minutes from Heathrow 25 minutes from High Wycombe 30 minutes from Reading Call us on 01753 439321


Mon - Thursday  9am - 6pm

Friday 9am - 12pm

Saturday 9am - 4pm

All bookings are by appointment only.