Dyno Developed Software & Unrivalled
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An ECU Remap for your exotic car
can significantly improve your driving


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


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


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 Fiat Reviews

Fiat 500 0.9 TwinAir 85 bhp Petrol

Posted on 2nd November 2017, 20:24

Had my fiat 500 retuned by Celtic Tuing and what a big change to the 500 its so much better to drive the extra power and torque to the engine has made it fantastic to drive.

Thank you to Kev from Celtic who did all the work!!!

Mark Pozzetto

sales executive

Horsham, west sussex, United Kingdom

Not an actual picture of the tuned car

Fiat 124 Spider 1.4 MultiAir Turbo 138 bhp

Check Fiat 124 Spider stats

Posted on 16th July 2017, 11:41

I have great pleasure in providing a testimonial for George Williams Geewiz Diagnostics technician with Celtic Tuning.

George remapped my Fiat 124 Spider, a complex and difficult job requiring the removal and opening of the ECU. To say that this job was complex is an understatement. Using state of the art equipment skill and determination George successfully completed the job. His care and attention to detail and knowledge was second to none. I am seriously impressed by George's skill and have no hesitation in recommending him and Celtic Tuning to others thinking about remapping their car.

The change in the cars performance is astonishing.


Retired AMHP

LIVERPOOL, Merseyside, United Kingdom

Fiat Ducato 2.8 JTD 146 bhp

Check Fiat Ducato stats

Posted on 23rd December 2016, 19:30

I do not usually write testimonials but I am so pleased with the remapping Celtic Tuning did on my Fiat Ducato based Motorhome. The improved performance is all I could have hoped for and the vehicle is now a real pleasure to drive.

Paul Tutt

Bideford, Devon, United Kingdom

Not an actual picture of the tuned car

Fiat Doblo 1.9 JTD 105 bhp

Check Fiat Doblo stats

Posted on 16th May 2015, 12:22

Not an actual picture of the tuned car

I'm not one for writing stuff on these things but after a year of driving my van since the remap, I'm still totally amazed with the performance and mpg I get! It maybe just a van but it's running at 150bhp and I'm getting 55mpg on a run at 60mph! Performance is amazing and it's quite funny when you get boy racers about 18 try to burn off at the lights to see there racers when a van passes them :-)

Anyway, I was worried initially about putting stress on the engine with a remap etc but I needn't had been, the van has been faultless and drives fantastic. I am now about to book my new car I pick up on Monday in for a new remap and I am totally confident and excited about the outcome once she arrives! It's a 2007 Audi S3 with 265bhp standard and it will have 315bhp once remapped! Happy days.

Simon Light

Kings lynn, United Kingdom

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