Here you will find seat fittings for div. motorsport. They are used for mounting seats from eg Sparco, OMP, Atech, BPS. ie eg FIA approved rally seats. Seat brackets are often made with many bolt holes so you can mount your seat in several positions, high/low, far forward, or backward. There are seat fittings which are made of Alu or steel, if you go a lot up in the weight of your car, you should choose it in aluminum.