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Ford Focus ST225 Mk2 ECU Remapping

Ford Focus ST225 Mk22.5 Turbo 5-cyl · 2005–2010

Stage 1 £349

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4.9/5500+ Google ReviewsSee Google Reviews

The Ford Focus ST225 Mk2 (2005 to 2010) leaves the factory with 225 PS and 320 Nm from its 2.5 petrol engine. Our Stage 1 estimate takes it to 270 PS and 400 Nm, roughly 20% more power and 25% more torque.

Stage 1 price

£349

Stage 1 ECU remap

Estimated gain

+45 PS · +80 Nm

Power

Stock
225 PS
Stage 1
270 PS

Torque

Stock
320 Nm
Stage 1
400 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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Focus Mk3

1.0 EcoBoost 125 1.0 Petrol

Focus Mk4

1.5 EcoBlue 120 1.5 Diesel

Focus RS Mk2

Focus RS 2.5 Petrol

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

Get Your Focus ST225 Mk2 Quote

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  • Slough workshop
  • Vehicle-specific quotes

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Google Customer Reviews

What Ford Owners Say

See what customers say about their experience with STX Tuning.

Google Reviews

4.9

535 Google Reviews

  • Jamiah Woodroffe

    Apr 2026

    Really five star service I’ve only got my car the day before I messaged on a Sunday just as an inquiry was more than Happy to take time of the day on a Sunday to fit me in last minute just want to think the whole team very professional and I absolutely love my car. I felt an instant power boost and explained everything to me and packages that I can definitely most likely in the future upgrade to will be definitely coming again.

    Posted on Google · view on our Google profile

  • Tracy

    Jan 2026

    Amazing company, arrived within 2 hours of my call and fixed the problem where another garage had failed. So happy to have the issue resolved, technician was so nice and explained everything, excellent service, highly recommend STX Tuning

    Posted on Google · view on our Google profile

  • Jake Bickmore

    Dec 2025

    STX Tuning were absolutely brilliant. The service was super fast — same day turnaround — and they solved an issue with my car that a main dealer claimed would cost me thousands to fix. It turned out the expensive repair wasn’t even necessary, and STX handled it quickly and professionally. Honest, efficient, and highly recommended!

    Posted on Google · view on our Google profile

  • 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.

    Posted on Google · view on our Google profile
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