[Geo31]

The only modification allowed to the body of the car in IT is the addition of an air dam and there is a limitation to how far off the ground the air dam can extend (my recollection is the center of the wheel, but don't take my recollection for fact).

So, the bumpers (and brackets) must remain stock.

As for the tail, IIRC the tail was not a factory option during those years. The Weissach edition did come with the tail from the factory, but that model has not been classified.