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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
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Towing power is essential for any
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Testimonial Chrysler Reviews

Chrysler 300c 3.0 V6 CRD 215 bhp Diesel

Posted on 25th July 2019, 21:28

I have just had my Chrysler 300c remapped by Kevin, who I must say was very friendly and helpful throughout the process of the remap, on a very hot day.

On the test drive after the remap, it was simply like being in another car, the difference in power was to put it mildly enormous, the car felt as it should, big, strong and fast.

Thank you again to Celtic Tuning, for a great service, and of course to Kevin for all his advice.


United Kingdom

Not an actual picture of the tuned car

Chrysler Crossfire 3.2 V6 215 bhp Petrol

Posted on 26th April 2018, 21:28

Not an actual picture of the tuned car

Having just had the remap done, I can confidently say that there is a noticeable difference in how the car drives and accelerates. Given it's a naturally aspirated engine, I was impressed by the gains quoted by Celtic Tuning and can confirm the benefits they bring, if only slight.

The reality is, you're never going to get a massive difference from a non-turbo vehicle, so don't expect a large change in performance because that won't happen. Instead, enjoy better high end grunt and a more responsive drive. Would definitely recommend.


Car Salesmen, Jaguar

Aberdeen, Grampian, United Kingdom

Staggering Difference

Check Chrysler 300c stats

Chrysler 300c 3.0 V6 CRD 215 bhp Diesel

Posted on 1st November 2016, 19:49

Had an ECU remap performed today by Kevin from Celtic Tuning. I had waited over 2 months for a slot but in under half an hour the car was ready to test and I was staggered at the difference in the power delivery.

Before remapping the car was always sluggish at low revs but now revs freely with a broad smooth power band. Transformed is an understatement!

If you have a Chrysler 300c diesel look no further than Celtic. It will be easily the best investment you make for the money and highly recommended.


United Kingdom

Chrysler 300c 3.0 V6 CRD 215 bhp

Check Chrysler 300c stats

Posted on 15th May 2015, 11:39

Wow Celtic - thanks very much for a fantastic product and superb service! Stage1 remap giving my 300c 465 ft/lbs of torque - epic is an understatement. From the ease of booking by Rachel to the absolute top notch and punctual work carried out by Kevin. He was chatty and shared a love of BTCC and so we had plenty in common. He installed the new map but diligently had a look for any fault codes. He found the dpf was partially blocked and tried a forced activation but couldn't and so reset the dpf system. As soon as the car was started it went into regeneration mode - this was all put down to customer service! I could tell Kevin was really enjoying his work and remained enthusiastic and very professional throughout. Kevin is a credit to Celtic tuning and as a front line member of the team is 100% an ambassador and exemplar for service. The car has been transformed and is an even greater pleasure to drive. I looked at 6 tuning firms and am so glad I chose Celtic tuning - if only everything automotive was as good, honest and genuine. Thank you!

Scott Harrop

Ipswich, United Kingdom

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