Trusted tuners


Avon Tuning

Avon Tuning is an ECU Remapping and Performance Tuning company based in the South West of England with an international network of Authorised Agents. Originally founded in 2010 by the owner and current Technical Director Gareth Jones, Avon Tuning has since grown into a strong team of over 10 dedicated professionals all with a passion for Tuning.

ECU Remapping

Our dedicated team of in-house software calibrators sets Avon Tuning as a key leader in the ECU Remapping and Tuning industry. We offer a truly bespoke service tailored to each individual customer’s needs, ranging from pure performance to fuel economy savings. We develop and test our software in house ensuring quality is kept to the highest of standards. Furthermore, the diverse team of in-house engineers allows all industry sectors to be covered – Automotive, Agricultural, Industrial, Construction and Marine.


By partnering with some of the very best performance part manufacturers, Avon Tuning is Truly A One Stop Shop for all your performance needs. We can offer supply only to retail and trade customers or we can offer a supply and fit service at our Bristol HQ. From world class Exhaust Systems, to precision engineered Intercoolers – we have a range of upgrade options which will suit the needs of even the most demanding of petrol heads.


We have a 15,000 square foot dedicated Tuning facility located in Bristol, England. It is at this location which is home to not only our
team of in-house file writers, Technicians and Customer Care team but also boasts a comfortable setting for our retail customers to enjoy
whilst work is completed on their vehicle. The workshop is equipped with the latest Dimsport 4wd hydraulically linked Dyno (Rolling Road),
capable of testing 2WD and 4WD vehicles up to 1200 BHP. The Dyno is housed within a state-of-the-art sound reducing dyno cell and is fitted
with a 15KW cooling fan and a 10KW extraction fan. The impressive cooling and extraction setup ensures the vehicles are kept cool while
also removing unwanted exhaust gases thus creating a controlled and safe environment for testing and developing purposes. Furthermore, our
Agricultural Tuning division is equipped with a Dimsport mobile tractor Dyno, capable of testing a range of Agricultural vehicles via the PTO.


With over 300 Authorised Agents spread across all the continents, Avon Tuning has truly become an internationally recognised brand. All Agents
have undergone a strict training regime and have the professionalism and credentials required to successfully install AT software. This means
that no matter where you are in the world, you can still enjoy an approved Avon Tuning remap.


‘To offer professional workmanship of the highest quality with the very best in customer care’

Celtic Tuning

Celtic Tuning are specialists in the development of engine management software where we have a specialist team of graduate level software developers. All of our software development is carried out in house using our state of the art facilities which very few companies can rival, even internationally.

Development facilities

We have two state of the art 4WD linked dynamometer cells 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. Our investment in dyno facilites means that our development programmes can work side by side allowing us to cover a wider range of makes and models.

Celtic Tuning worldwide

We have a dealer network spanning 19 countries we have an unrivalled level of experience in working with engines operating in all working conditions and environments. The major benefit of developing our software is that we are able to provide custom software for the clientele looking for even bigger power gains.

Customer Satisfaction

We pride ourselves on customer satisfaction and it is at the forefront of our operations. With reliability, drivability and satisfaction being our target we are sure you will be delighted with the service we offer.



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