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Dyno Developed Software & Unrivalled
Technical Support.


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An ECU Remap for your exotic car
can significantly improve your driving


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ECU Remapping your Turbo Diesel has
never been so easy. With improved power
and fuel economy one simple step away.


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Tuning your truck can improve your pulling
power and fuel economy. See how Celtic
Tuning can help you and your fleet.


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Towing power is essential for any
farmer. Improve the power and
fuel economy of your tractor with
an ECU Remap.


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Testimonial Citroen Reviews

Fantastic Service!!

Check Citroen DS3 stats

Citroen DS3 1.6 BlueHDi 118 bhp Diesel

Posted on 11th June 2024, 08:24

I just wanted to say a massive thank you to the team at CT for the wonderful job they have done on our DS3

They did exactly what they said they would do and the service was very professional and prompt.

Thank you for the excellent service.

Kind Regards



Branch Manager

Cornwall, United Kingdom

Not an actual picture of the tuned car


Check Citroen DS5 stats

Citroen DS5 2.0 HDi 160 bhp Diesel

Posted on 16th February 2019, 19:43

This is the 4th time I’ve had my car remapped by Celtic Tuning and once again they have come up trumps. The performance is now far better with smooth acceleration, effortless gear changes in both manual and automatic, no loss of fuel mileage and a much better kick in sports mode. What’s more Celtic Tuning is excellent value, considering I paid roughly the same price I did when I had my old Peugeot 206hdi done in the early 2000s.

As always the service was extremely efficient, professional and friendly. Would always recommend, as high-quality service at a reasonable price.

Chris Sheridan

Senior Social Worker, Devon County Council

Exeter, Devon, United Kingdom

Citroen Xsara Picasso 2.0 HDi 90 bhp

Check Citroen Xsara Picasso stats

Posted on 11th October 2016, 21:40

Absolutely excellent results. The increase in low rev torque is amazing, The car now pulls like a steam train, great for towing. Fuel economy is actually better unless you boot it all the time. I am averaging 47mpg on a 14 mile commuter run including country A road and town traffic queues. Easily 50+ on a longer run if I stay below 80mph.

Thoroughly recommended


Bank Manager

Cornwall, United Kingdom

Not an actual picture of the tuned car

Citroen Berlingo 1.6 e-HDi 75 bhp

Check Citroen Berlingo stats

Posted on 8th December 2015, 22:17

Not an actual picture of the tuned car

Took my Berlingo van to Celtic Tuning HQ today for a stage 2 remap, what a difference it has made.

I had a 180 mile trip back home so had plenty of time to feel what an improvement it has made, going from 75bhp up to 120+bhp, it pulls all the way through the rev range, once in top gear it stays there no need to drop down a cog. A big improvement in economy also 180miles @ 60/70 mph 49.5 mpg avg before map, 180miles @60/70mph 60.1mpg avg after map !

Polite staff, nice premises, great price. Brilliant.

Dave Wintour

Lydney, Gloucestershire, United Kingdom

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