Eventuri Carbon Fibre Intake System - BMW Z4MEventuri Carbon Fibre Intake System BMW Z4M Performance Gain: 10 15 hp, 8 12 lb ft The Z4M intake follows on from the Eventuri E46 M3 system as a result of extensive data logging, dyno testing and design optimisation. Their 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. The Eventuri Difference The Z4M Eventuri system uses their