BMW E9x M3 Eventuri Carbon Fiber IntakeDescription: The BMW E9X M3 Eventuri intake system is the result of extensive research and optimization which improves possibly one of the best designed stock intake systems we have seen. The E9X stock airbox system is a brilliantly designed intake with an excellent flow path and feed system for ambient air. However, on closer inspection, there are restrictions in the inlet tube connecting the airbox to the inlet manifold. By redesigning the tube yet