With certain power kit brands, yes, there is a risk. But not with P-Tronic kits. Turbo-diesel and turbo-petrol engines are limited at the outset. Ideally, they should be able to develop their real power so that they can express all their potential and give their best performance. P-Tronic power kits are designed precisely to allow the engine to discover its optimal configuration without going to its limits. There is therefore no risk of the engine breaking.
It should always be remembered, though, that to guarantee the longest life to a turbo-diesel and turbo-petrol engine (with or without box-unit), it is advisable never to exceed 2000 revs when the engine is cold, and to let the engine idle for 30 seconds after a journey before turning it off. By respecting these simple rules, you will never have a problem with your engine. You don't risk damaging the turbo either.
But beware, it is always possible that a vehicle has a fault from the beginning...