Legal

Terms & conditions.

These terms apply to every order placed with Norris Motorsports, whether you buy a calibration file or an installation booking with one of our partner garages.

Last updated: 26 September 2026

1. Who we are

Norris Motorsports ("we", "us") is a performance ECU calibration business trading from Beckenham, Kent, BR3 4JJ, United Kingdom. You can reach us at any time at support@norrismotorsports.co.uk.

By placing an order you confirm that you are at least 18 years old and that you accept these terms.

2. What we supply

We supply three types of product:

  • Bespoke ECU calibration files (Stage 1 and Stage 2), built individually for your vehicle, engine, fuel grade and fitted hardware.
  • Installation bookings, where a trusted partner garage reads and writes your vehicle on your behalf.

We are a file service. We do not carry out dyno tuning in-house, and any power figures shown on this website are illustrative, conservative estimates only.

3. Prices and payment

  • All prices are shown and charged in pounds sterling (GBP, £). No other currency is accepted, and any figure you see elsewhere is an estimate only.
  • Payment is taken at checkout by card through our secure payment provider, or by Revolut payment link.
  • We never see or store your full card details. Card data is handled entirely by the payment provider.
  • Surcharges (for example exotic-brand handling or ECU unlocking on newer vehicles) are shown in your price before you pay.
  • Your order is only confirmed once payment has cleared. Order numbers are issued when payment is confirmed.

4. Delivery and turnaround

  • Calibration files are normally prepared within 45–60 minutes of receiving a clean, complete original ECU read.
  • Your finished file is made available to download from your account and remains downloadable for 5 days.
  • Installation bookings are arranged with your chosen partner garage after payment has cleared.

5. Your responsibilities

  • Give accurate vehicle details: year, model, engine code, gearbox, fuel grade and every hardware modification fitted.
  • Supply a complete, uncorrupted original (stock) ECU read taken with a suitable tool.
  • Make sure the vehicle is mechanically sound, serviced and free of existing faults before flashing.
  • Keep battery voltage stable throughout reading and writing, and follow your tool's instructions exactly.
  • Keep a copy of your original file so the vehicle can be returned to factory software at any time.
  • Make sure any modified software use complies with the law, insurance terms and road rules where you drive.

6. Warranty and liability

Modified engine software may affect your manufacturer warranty, insurance cover and vehicle emissions status. It is your responsibility to declare modifications to your insurer and to comply with local regulations.

We supply calibration data only. We do not install software on your vehicle unless you have booked a partner installation, and we are not liable for mechanical failure caused by pre-existing faults, unsuitable fuel, undeclared modifications, incorrect flashing, interrupted writes, or misuse of the vehicle.

Nothing in these terms limits your statutory rights as a consumer in the United Kingdom, or our liability for death, personal injury or fraud.

7. Intellectual property

Calibration files remain our intellectual property and are licensed to you for use on the single vehicle they were built for. Reselling, sharing, copying or reverse-engineering our files is not permitted.

8. Cancellations and refunds

Cancellations, returns and refunds are covered by our refund and cancellation policy, which forms part of these terms.

9. Governing law

These terms are governed by the laws of England and Wales, and disputes fall under the jurisdiction of the courts of England and Wales.