For TÜV it don´t work on this way. They defenitly want ABE papers! I need it for my special car engineerer (he can do somephing for me).
An extra tip for everybody who have to go to TÜV, buy everything in black or in the color of the car! GM Original don´t work. If you have somephing with GM original on your car, they see extra, that it was somephing changed! And so... you got an extra look on this part!

da*** TÜV!
Danix