Even with the previously offered, maximum power increasement up to 621hp, the company now offers a newly developed Carbonairbox. Many years of knowledge from the racing and motor sport gained in the realization of the larger and throughput-optimized box, which results in the new performance stage III and a significant power increase in the amount of additional 26 hp / 19 nm up to a final 647hp / 635 nm of output. This increasement is achieved by installation of manifolds, valve-controlled exhaust system, a software upgrade and the described carbon-airbox.