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Performance Increase : 7-12hp, 10-19ft-lb
The N20 Eventuri intake system is another example of our “Complete System” principal. It is a fully sealed system which ensures that the turbo does not draw hot air from the engine bay. To further improve on the intake temperatures, we added a front scoop which forces air into the stock duct and feeds the intake system when the car is in motion. This combination of a sealed system with an air scoop results in lower intake temperatures than the stock airbox. To ensure the smoothest flow possible we use our Patented filter housing coupled with an intake tube which replaces the stock tube. The stock tube has a sound dampening chamber which causes turbulence – our carbon tube replaces this and allows for unrestricted flow to the turbo.
The Eventuri Difference
The N20 Eventuri system uses our Patented Carbon fibre Housing which provides an aerodynamically efficient airflow path from the filter to the turbo. Not just another cone filter with a heat shield but a unique design which invokes the Venturi affect and maintains laminar flow conditions to reduce the drag on the turbo.
Below is a dyno graph showing the comparison between the Eventuri and the stock airbox on an F series 320i with a stage 1 remap. As you can see, power and torque are increased through a large portion of the rpm range. 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. The bonnet was closed for all runs. 
The gains are from a combination of reasons:
1) The sealed system coupled with a front air scoop keeps IATs low.
2) The Venturi housing provides a smooth transition from the filter to the intake tube which helps the turbo to run more efficiently.
3) The entire system is constructed from pure pre-preg carbon fibre which is great at insulating from heat.
