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Maserati GranTurismo Trofeo M189 MY27 ECU Remapping

Maserati GranTurismo Trofeo M189 MY273.0 Nettuno V6 Twin Turbo · 2026–Present

Stage 1 £899

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4.9/5500+ Google ReviewsSee Google Reviews

The Maserati GranTurismo Trofeo M189 MY27 (2026 to Present) leaves the factory with 590 PS and 650 Nm from its 3.0 petrol engine. Our Stage 1 estimate takes it to 660 PS and 760 Nm, roughly 12% more power and 17% more torque.

Stage 1 price

£899

Stage 1 ECU remap

Estimated gain

+70 PS · +110 Nm

Power

Stock
590 PS
Stage 1
660 PS

Torque

Stock
650 Nm
Stage 1
760 Nm

Figures are STX Tuning estimates for a healthy standard car, not a dyno result for your vehicle. Power is shown in PS. These are existing vehicle library estimates, not independently measured results.

Where would you like it done?
01753 439130
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What we do

More than just ECU remapping.

From Stage 1 and Stage 2 ECU remapping to gearbox tuning and supporting performance upgrades, STX Tuning offers specialist vehicle software and tuning services for compatible petrol and diesel cars and vans.

Explore the available options for your exact vehicle at our Slough workshop, with suitable mobile ECU remapping appointments available across selected surrounding areas.

Not sure which tuning service you need?

Tell us what you drive and what you'd like to achieve. We'll check your vehicle and help you explore the available options.

4.9/5 | 500+ Google Reviews
Get my tuning quoteCall STX Tuning: 01753 439130

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  • 4.9/5 Google rating · 535 reviews
  • Slough workshop
  • Vehicle-specific quotes

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Google Customer Reviews

What Maserati Owners Say

See what customers say about their experience with STX Tuning.

Google Reviews

4.9

535 Google Reviews

  • Matthew Mooney

    Nov 2025

    STX were great! (its within ONYX which confused me when I got there, no biggy, just for anyone else reading it). I happened to be arriving when a guy must have been starting their shift, super helpful and got me to the right person. On the way in they even took the time to show my son the Lambo they had, this type of service is so nice to receive. The young guy we spotted fitting the wheels later on, thank you! In for a Stage 1 remap, all done in 30 minutes, and car drives brilliantly and exceeded expectations. Also at a great price as well. All staff I met were super nice and helpful. Credit to you guys! I will definitely be choose these guys going forward! Highly recommend.

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  • Loizos Kyriacou

    Jun 2025

    Went to remap my GLE 250d and the whole process was smooth from start to finish. Super responsive, and had the job done quickly with zero hassle. The results are brilliant , noticeable power gains straight away and smoother drive overall. Would highly recommend them to anyone looking for a quality remap with excellent customer service!

    Posted on Google · view on our Google profile

  • Debby Cunliffe

    Jun 2025

    Fantastic service. Came to my home on a Sunday to remap my car. Great job done and lifetime warranty plus interest free payment facility over 4 months available. Highly recommend

    Posted on Google · view on our Google profile

  • Daniel Sullivan

    Jan 2025

    Highly recommended service. The team at STX are very accommodating and professional. Had a remap on my Audi which was turned around in a day. Running perfectly. I will definitely be back for additional work in the near future.

    Posted on Google · view on our Google profile

  • Stephen Hall

    Jan 2025

    Great and quick service, sorted my emissions error out on my car , "Really happy with the remap done on my car, polite, efficient service and would highly recommended"

    Posted on Google · view on our Google profile
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