Akrapovic Evolution Line (Titanium) for X6M and X5MEV EvolutionConstructed from lightweight high grade titanium with complex parts made in Akrapovis in house foundry the Evolution Line provides a weight saving over the stock system, and increases power and torque throughout the rev range. The Evolution Line (Titanium) has been designed to meet ECE type approval as a plug and play system and fits directly onto the BMW X5 Ms stock downpipes. It is tuned to provide a perfect sound accompaniment to the