Thank you for your enquiry regarding the Seat Tuning,
In basic terms it is not possible to get an accurate dyno reading here in the UK,
The Tune is independently tested, by the TUV in Europe, and is developed and setup on the 12M Euro ABT Dyno, one of the most expensive in Europe,
The tuning is very sensitive to heat, It is monitoring both Coolant and intake temperatures,
you would have no additional power from start, the power increases bhp by bhp until you reach 90 Degrees Coolant Temp, then you achieve full power.
The challenge is on a UK dyno there is limited cooling, and the tuning is programmed to also clip back, once intake temperatures etc get too high, so on a cheap £200K dyno it would read almost standard power, due to the heat soak in the engine bay, (yes they have some fans) but the ABT setup is accurately re creating what is on the road.
The fans are cooled, there is an entire cooling tower, so when you are doing 100mph you are getting 100mph of accurate and normal temp wind. so there is no build up of heat.
So both the Tune is very different to a conventional "Remap" and the dyno is much more advanced.
As discussed its not ABT that declare the figures it is all independently tested in German by TUV, to meet any emissions requirements etc.
If the tune is faulty it will flash some warning lights etc, and we also have the ability to bridge out the Tuning to show the standard power.
Hope this helps,
