Scorpio 1 2.9 V6 12V with Bi-Turbo, who has experience?

Hello together, some time ago I added a used Bi-Turbo set for the 2.9 V6 12V with 145 hp. Consists of 2x Garrett exhaust turbocharger with a pressure box and a small additional electronics which is plugged on the back of the engine control unit and the matching exhaust manifold with flange for the turbos, double intercooler, 6 injection nozzles, cables and hoses, oil tank with additional outlets. Should an increase of the power to approx. 250 hp at 0.35 charge pressure with I am of course aware that this increase in performance is at the expense of the life of the engine, transmission ….. But still my question: Does anyone have experience with it (software to change the data, ….) before I have to get out my dusty English. In Austria, as much as I have found out, there is no contact person who knows about it or changes in the SW M.f.G. Thomas