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Audi RS6 Performance C7 ECU Remapping

Audi RS6 Performance C74.0 TFSI V8 · 2015–2018

Stage 1 £599

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4.9/5500+ Google ReviewsSee Google Reviews

The Audi RS6 Performance C7 (2015 to 2018) leaves the factory with 605 PS and 750 Nm from its 4.0 petrol engine. Our Stage 1 estimate takes it to 720 PS and 1000 Nm, roughly 19% more power and 33% more torque.

Stage 1 price

£599

Stage 1 ECU remap

Estimated gain

+115 PS · +250 Nm

Power

Stock
605 PS
Stage 1
720 PS

Torque

Stock
750 Nm
Stage 1
1000 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

Get Your RS6 Performance C7 Quote

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Call STX: 01753 439130
  • 4.9/5 Google rating · 535 reviews
  • Slough workshop
  • Vehicle-specific quotes

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Google Customer Reviews

What Audi Owners Say

See what customers say about their experience with STX Tuning.

Google Reviews

4.9

535 Google Reviews

  • Wayne Jackson

    Jul 2025

    Had my 2014 Golf GTI remapped by STX Tuning and I couldn’t be happier. The power gains are instantly noticeable—sharper throttle, stronger pull, and overall much more fun to drive. STX were professional and explained everything clearly. No issues since, and fuel economy is still the same. Highly recommend them if you’re looking to get more out of your car!

    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

  • Mark Baxendale

    Jun 2024

    Had some work done by Sam and his team to my Skoda Superb. Flawless execution, better MPG and power delivery and no more engine lights. Communication was great - would definitely recommend and would use again without hesitation.

    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

  • Tony Thorpe

    Dec 2024

    STX tuning really looked after me and my van, explained the process and carried out work without any fuss whatsoever! Van has been perfect since. Would definitely recommend to anyone to use! Keep up the good work guys!

    Posted on Google · view on our Google profile

  • ಠ_ಠ

    Nov 2024

    Honestly well happy with the stage 1 re map, was worried if I would even feel a power difference from 125-151bhp but I can assure you it’s a difference, aswell as a good high change in torque. It took about 30 minutes, brilliant service, and dome good tips on how to take care of my car after ⭐️⭐️⭐️⭐️⭐️

    Posted on Google · view on our Google profile
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