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If the car is still inside its manufacturer warranty, changing engine software can affect a drivetrain claim. We will tell you where you stand before you book, and plenty of people wait until the warranty is up.

The file stays inside the tolerances the engine was designed around, and we check the car for existing faults first. A tired engine with a slipping clutch or a boost leak does not get mapped until that is sorted.

Most jobs are one to two hours. If the ECU has to come out for a bench read it can take longer, and we will say so when you book rather than on the day.

Yes, at any time. Your original file is saved before anything changes and it stays on our system.

No. Disabling emissions equipment on a road registered car is an offence and an automatic MOT failure. We diagnose those systems and help you repair them properly instead.

The registration and a note of anything that has been changed on the car. That is usually enough to come back to you the same day.