The E85 / E86 Z4M Eventuri intake system uses their Patent Pending Carbon fiber Housing which provides an aerodynamically efficient airflow path from the filter to the MAF tube. Not just another cone filter with a heat shield but a unique design which invokes the Venturi affect.
The E85 / E86 Z4M intake system is a result of extensive data logging, dyno testing and design optimization. Eventuri's aim was to develop an intake system for the S54 engine which worked with the stock ECU map and MAF sensor and produced a genuine improvement in the driving experience.
Performance increase = 10-15hp / 8-12ft-lb torque