Performance Gain: 10-15hp, 8-12ft-lb
The Z4M intake follows on from our E46 M3 system as a result of extensive data logging, dyno testing and design optimisation. Our 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 our Patent Pending carbon fibre 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. You can read more about the housing design and how it works HERE
Below is a dyno graph showing the comparison between the Eventuri and the stock airbox on a standard Z4M. As you can see, power and torque are increased through a large portion of the rpm range not just at the peak. On this particular Z4M the Eventuri intake made approximately 11hp but we have seen up to 15hp on other Z4M vehicles. This translates on the road to increased part throttle and full throttle response with the car pulling much more eagerly to the redline. The testing was done on the same day back-to-back and temperatures were monitored to ensure consistency.
Although the Eventuri system does not require a remap – we have seen further gains when the Z4M is subsequently remapped.