ECU Remapping Hampshire | Car Tuning Experts in Hampshire
Since we began trading in 2012, we have offered the very best in engine remapping, car diagnostics, ECU remapping, and car tuning to domestic clients and commercial customers alike, right across the county and beyond. This means that customers as far afield as Brighton, Chichester, Crawley, Fareham, Farnham, Guildford, Horsham, Petersfield, Portsmouth, Southampton, Winchester, Worthing – to name but a few – have been able to benefit from the dedication and experience of our team of veteran technicians.

What TCM Tuning can do for you
As one of the top car tuning and engine remapping services in the South East, there is a lot that we can do for you. Here are a few of our more popular services.
Unlock the hidden potential of your Automatic Transmission with our XHP Gearbox Maps! Available for over 120 BMW Models with 6 or 8-Speed Transmission,
XHP Flashtool is the world’s leading solution for enhancing your Auto – Transmission!
Improve the overall performance of your BMW, get access to hidden features and enjoy faster shifts
Car tuning
At its core, car tuning is the act of making your car engine more efficient and, consequently, more powerful. While much of that is done at an electronic level with our full ECU remapping service, there are also physical and mechanical steps we can take to improve performance.

Car diagnostics
A TCM Tuning we can run a complete car diagnostic check for you with our state-of-the-art equipment. Hooking it up to your vehicle’s onboard computer, we can soon detect any existing or potential flaws with your car.

Car servicing
Car servicing is an essential part of your vehicle’s regular maintenance routine. Our team of highly-trained mechanics will perform an end-to-end car service on your vehicle. This checks all key components from the engine and cooling system, to the brakes, lights, steering, and more. It is your guarantee of smooth performance in the future.

Why choose TCM Tuning for your remapping needs?
As any of our thousands of satisfied clients across the Hampshire area will be happy to tell you, there are plenty of reasons for selecting TCM Tuning. Here are just a few of the more common ones, based on feedback from our customers…

The biggest names for peace of mind
We only ever use the best tools when it comes to car tuning, engine remapping, car diagnostics, and ECU remapping. These include CMD, Magic Motorsport (MAGPro2 and flex tools), Alientech and XHP for BMW gearbox flashing tuning. Those of you familiar with the industry will recognise those names as some of the most reliable and dependable in the business. We only ever use the best, because that’s what we believe our clients deserve.
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Your local car tuning and engine remapping specialists
Operating out of our main tuning centre in Portsmouth, our team of highly-trained technicians cover an area of some fifty miles or so. This takes in the whole of Hampshire, as well as some of the neighbouring counties including our valued customers in Brighton, Chichester, Crawley, Fareham, Farnham, Guildford, Horsham, Petersfield, Portsmouth, Southampton, Winchester, Worthing, and beyond.
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Comfortable tuning centre in Portsmouth
We have a saying here at TCM Tuning: you come to us, or we come to you. If you choose the former, then you get to visit our first-rate tuning centre in the heart of the historical city of Portsmouth. We are an independent car tuning and engine remaaping centre and pride ourselves in having more technical equipment than most franchise dealerships.
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A fully mobile car tuning service
And then there’s the other part of our saying. If you can’t make it to our tuning centre, then don’t worry. That’s no reason for you to miss out on the very best remapping service in the South East. Whether you live in Brighton, Chichester, Crawley, Fareham, Farnham, Guildford, Horsham, Petersfield, Portsmouth, Southampton, Winchester, Worthing, or even further afield, one of our highly-trained and well-experienced car tuning and ECU remapping experts will be happy to come and visit you. Our mobile service involves the same tools and the same quality of service that you receive at our tuning centre, but available from the comfort of your own home.
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Over thirty years of experience
While we have been trading continuously since 2012, our team of technicians have been involved in the car tuning and ECU remapping industry for a lot longer. With more than three decades of combined experience under their collective belts, you can be sure of a quality remapping or tuning service every time you bring a car to us.
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Get in touch
For all your car tuning, ECU remapping, engine remapping, and car diagnostics needs in and around the Hampshire region, call TCM Tuning today on 01273 258010, 01403 618399, 01483 494746, 02380 082766 for your free, no-obligation quote.