MX-5 specialists · Motorsport Electronics ECUs
Remote ECU tuning and MX-5 electrical upgrades
We map Motorsport Electronics ME221, ME360 and ME442 ECUs remotely, from data logged on your own car on your own roads, and we design and build the wiring, sensors and electronics that go with them. The MX-5 is our speciality, but we have tuned everything from race cars to camper vans.
- Over 1,000 vehicles mapped
- Recommended by Motorsport Electronics
Remote tuning
Tuned from real driving, not one dyno session
We tune from data logs recorded on your car, reviewing over 100 channels in far more detail than is possible when mapping live on the road or on a dyno. Because the data comes from real-world driving, startup, idle and throttle response can often be made better than a dyno tune manages. Every map is built for your car alone, and we take as long as it needs.
- No rolling road, no travel. You log drives in your own time, on your own roads, and we send the updates back.
- Fuel tables from our own software. Our in-house tuning software builds highly accurate VE tables that follow the natural resonances of your individual engine.
- Proper engine protection. We worked with Motorsport Electronics to develop methods such as per-cylinder knock detection, and we set them up on every full tune that has a knock sensor.
Services
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Full Tunefrom £170
Everything, start to finish. A complete replacement for a dyno tune.
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Basic Tunefrom £110
Starts, idles and drives well enough to get to a rolling road.
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Adjusting an existing tuneby the job
Tuned elsewhere and not quite right, or changed since? We can fix just the parts that need it.
Prices shown are for a naturally aspirated MX-5. Forced induction, ITBs and other cars are priced separately.
How it works
From first log to finished map
- Check your car is readyAn ME221, ME360 or ME442 ECU, a wideband AFR sensor and, ideally, a knock sensor. We sell what you are missing.
- Buy a tune and log a driveRecord a warm-up and a short drive on a Windows laptop plugged into the ECU, and send it to us.
- We send back an improved mapWe aim to have the first adjustment ready within 48 hours of receiving your data.
- Drive, log, repeatEach version builds on how the car drove on the last, until it drives as well as your engine allows.
What customers say
In our customers’ words
“4 days later my car is totally transformed. The car now runs like it has a factory setup, the throttle response and drivability is excellent, cold and hot starting is effortless and the idle is spot on.”
“I’ve had a dyno tune in the past, but I much preferred the experience with the remote tune. I felt more involved and if you have any issues that need resolving (like I had) you don’t end up paying for a 2nd dyno day.”
“At 1st I’d admit I was sceptical allowing someone to remote map the Maz not having a Dyno or in person, it’s my only car. But I’m so glad I went Alex/Digitune, after each map the car just felt more & more refined.”
Designed and built by DigiTune
Our own electronics
Hardware we design and build ourselves to add to what your ECU can do. Configured over USB with our own desktop software.
DigiTune Fusion
An input/output controller that expands your ECU: four 10A outputs, eight analogue inputs, thermocouple inputs, CAN bus and onboard logging.
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DBW Throttle Driver
Standalone drive-by-wire throttle control with a 4kHz control loop, driven from a pedal sensor, CAN or a PWM signal from the ECU.
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Sentinel Shift and Warning Light
Ten configurable LEDs that warn of low oil pressure, high temperatures, knock and more, without you taking your eyes off the road.
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Engine Protection Package
The Sentinel with oil pressure and temperature, fuel pressure and knock sensors. Plug and play on an 89–05 MX-5 with an ME221 or ME442.
View product →MX-5 parts and upgrade kits
Everything a tuned MX-5 needs
Built to exceed OEM standards, and mostly plug and play with the factory wiring.
Free guides
MX-5 notes and articles
Notes for your model and year
What to know about each generation before it is tuned.
Not sure what your car needs?
Tell us about your car and what you want from it, and we will tell you what it needs, whether that is a tune, a part or both.