Eventuri Carbon intake system for BMW M3 E9x

The Eventuri sports intake system is made entirely from the highest quality carbon.
The system provides performance improvement, faster throttle response, and a distinctive sound.

Filtration and Construction

Unlike many intake system manufacturers that use standard filters, thanks to extensive research and development efforts and investments, we have developed a unique filter design that ensures optimal performance parameters through a patented reverse configuration. The filtration material is made from a non-woven mesh tested according to ISO 5011 and meets the requirements set for factory-installed filters. The mesh consists of two layers and is completely dry, meaning there is no risk of damaging the air mass meter due to oil contamination. The filters include two cones that direct the airflow as described below: 

1. Inner Cone – facilitates the direction of incoming air through the filter and ensures a uniform velocity profile of airflow along the entire length of the filtration material. The cone ensures efficient airflow through the filter without disturbances.
2. Outer Cone – machine-made with a unique profile and optimal shape that facilitates airflow inward, downward towards the tip of the cone, and smooth flow to the further intake pipes. The cone creates a controlled area of flow disturbances around the outlet tip, ensuring convergent airflow at high speed and an airflow profile in the ducts leading to the engine at high speed.

Airflow

The airflow through the filter and the air outlet from the intake system to the connecting pipe to the engine is smooth and occurs at high speed. In practice, this means that the engine has the capability to very effectively draw in air, which translates to faster throttle response as well as an increase in engine power and torque. In the case of turbocharged engines, due to lower airflow resistance, it is possible to achieve peak boost earlier. Tests have shown that our intake systems significantly reduce the throttle cycle of the exhaust compared to factory-installed systems.

The following diagrams present CFD (Computational Fluid Dynamics) simulations of the flow lines and velocity distribution for the system with the new and original filter.

Improvement of Parameters

Tests of the Eventuri intake systems with original and new filters on the dynamometer showed an increase in engine power and torque. This allowed us to verify our theoretical models and prove that the new, improved filters significantly affect the airflow through the intake system. The increase in power compared to the original filters depends on the vehicle. Below are the results of measurements conducted so far. These graphs show a comparison of the Eventuri intake system with the original and new filter. Results for factory intake systems were not compared, for which the improvement in parameters will be even greater.