Personal I don’t think it makes a lot of difference at all considering the cost £1100 for 30 bhp.But if you want more power and keep the warranty (let’s face it we need it)theres not s lot more we can do.
I don’t know the techy aspects of this issue, but a few years ago I had a bluefin tune on a previous car which needed warranty work. I removed the tune before taking the car in. The dealer told me they detected the reflash but could not tell which tune it had been. On that occasion they let me off and carried out the warranty repair.
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