Eventuri E9x M3 Carbon Intake System

Eventuri intake systems use a 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.
$1,659.00

Product Information

The BMW E9x M3 Eventuri intake system is the result of extensive research and optimisation which improves possibly one of the best designed stock intake systems we have seen. The E9x M3 stock airbox system is a brilliantly designed intake with an excellent flow path and feed system for ambient air. However on closer inspection, Eventuri found are restrictions in the inlet tube connecting the airbox to the inlet manifold. By redesigning the tube yet maintaining the airbox, Eventuri have been able to allow the V8 engine to breathe with greater efficiency and therefore gain power. In addition to the new tube design, Eventuri also identified a further restriction in the air feed system. To overcome this they designed a scoop to allow an increase in airflow through the airbox. This reduces inlet temperature values further and adds to the performance gain of the system.

This intake is now available to be ordered with a Gloss or Matte carbon fibre finish (select one).

Performance Gain Dyno: 8-10hp, 10-12ft-lb
Performance Gain Road Dyno (Insoric): 16hp, 14Nm
IAT Difference with Ambient: Stock 7.5C : Eventuri 4.5C
V-Box Acceleration : 100-200kph Reduced By 0.3 Seconds



Carbon Intake Tube

The intake tube was designed to improve the airflow path compared to the stock tube - from the filter to the manifold. It is a 1-piece design which has no internal interfaces and therefore provides a much smoother path for the airflow to negotiate. Furthermore the geometrical transition is from a circular opening for the filter to the oval exit for the manifold. This is a much more efficient change in shape when compared with the stock tube which has to transition from a rectangular opening for the filter to the oval exit for the manifold.



Flexibility and Movement

An important challenge to overcome was the requirement of movement with the engine. Instead of using silicon couplers with flexible sections (which would introduce similar interfaces as the stock tube), Eventuri designed the tube itself to be able to move with the engine. The tube has a compressible neoprene band around the section which interfaces with the stock airbox. This section seals the tube to the airbox yet allows movement in and out of the airbox as the engine moves. By allowing the tube itself to move - Eventuri have been able to create a flow path which is as smooth as possible.



Carbon Air Scoop

The E9X M3 airbox system is saturated with cold air from 2 feeds : a lower feed from underneath the headlamp and an upper feed from behind the kidney grills. The primary feed is the lower one from underneath the headlamp as it connects directly to the airbox with minimal change of direction and a large opening to the airbox. This is also a high pressure area of the car and airflow moves through the airbox from underneath to the exit at the top connecting to the exit vent in the bonnet. The other feed from behind the kidney grills which, although is a welcome addition, provides a much lower volume of air to the airbox than the lower feed. This is because airflow has to change direction through 90 degrees twice and also because the duct narrows down significantly before the entry to the airbox.

Looking at the lower duct more closely, it becomes clear that the duct has a large ridge which comes back on itself just before the opening to the airbox. This acts as a barrier which inhibits direct entry of airflow to the box by reducing the entry speed of the airflow.

By designing a scoop to sit on top of the stock duct and curve up sooner to eliminate this ridge - airflow is now allowed to transition from the duct to the airbox without restriction. The airflow path is much smoother and as a result, the velocity of the air entering the airbox significantly increases.



Debris Shield

The final component is a debris shield attached to the filter - this deflects debris and water from impacting the filter directly. With the increase of airflow entering the airbox with the scoop - this is an important addition. There is no negative impact on performance since the airflow is not impeded through the airbox - temperatures are still lower than stock.


All the components come together in the engine bay to produce a genuine improvement in the driving experience as well as providing an incredible visual display of form and function in complete harmony.




The Eventuri E9x M3 intake system consists of a number of components engineered to perform a specific purpose and fabricated to the highest of standards. 

Kit contents

  • Carbon Fibre Intake Tube
  • High Flow Urethane Cone Filter - Filter Type E
  • Carbon Fibre inlet Scoop
  • CNC Machined breather adapter
  • Laser Cut Stainless Steel Debris Guard
  • Silicon Coupler and OEM specification clamps
Models
  • 3 Series / E90 / E91 / E92 / E93 (2005-2013) / M3

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