Welcome To SM Tuning

Get the best from your vehicle with our specialist tuning services. Increase your vehicles performance and driveability.

ECU Remapping

We are at the forefront of our industry when it comes to ECU remapping. We bespoke design all our own software in house to help us stay at the top of the game.
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Rolling Road / Dyno Tuning

As part of our commitment to providing an all in one tuning service. We have teamed up with internationally recognised Dyno Developments so we can offer front wheel drive, rear wheel drive and four wheel drive dyno tuning.
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Nationwide Mobile Tuning Service

We offer a nationwide mobile tuning service covering most parts of the country from Cornwall, All the way to Scotland and anywhere in between.
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About us

Our business was founded in 2013 by current owner and car enthusiast Sean McGarry. We focus our efforts on ECU Remapping and strive to provide the best and most comprehensive service available. Our initial roots began back in 2010 when Sean started tuning vehicles as a hobby. Since then SM Tuning has grown from strength to strength tuning over 5,000 vehicles directly and for our global dealer network. We have a UK nationwide mobile tuning service and rolling road / dyno tuning based in Stevenage, Hertfordshire. Our vast array of tuning tools gives us great scope and ability to support most makes and models of vehicle on the market today. This can range from cars, bikes, vans, trucks etc. Our reviews echo our 5 star services we offer. Get in touch today to see how we can help you!

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