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.
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.
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.
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
3 Series / E90 / E91 / E92 / E93 (2005-2013) / M3
Be the first to write a review
Thanks for submitting your review!
Please note, all reviews must be approved before they are published.
After 3 other BMW workshops couldn't fix the problem with my M3. SouthernBM sorted it. Excellent to deal with, great communication and customer service.
Andrew Brien @ Southern BM has been helping me for years with my BMWs - he is extremely astute and has a refreshingly customer-first mentality. I trust him to do the best work and only the best!
Great blokes down there, Eric is great for those chinese speaking customers looking for either some general quality servicing or even higher end modifications. Good team of humble and honest people, will definitely be back!
Thank you once again to John, Andrew and their team. Have been bringing our cars to them for several years now and have complete trust and faith in their workmanship and honesty.
One of (if not THE most) professional outfits I’ve dealt with - in the auto industry or otherwise. Needless to say, all work was carried out as promised and to an impeccable standard. Thank you Sean and team - you’ve renewed my faith in the auto business!