EVENTURI | BMW Z4M Hybrid Airbox

Performance Increase (with OEM ECU tune – E46 M3 test figures)

• Power: +20–22 HP
• Torque: +8–13 ft-lb

Eventuri Hybrid Airbox System – BMW E85 Z4M

The Eventuri Hybrid Airbox System is a world-first intake solution developed specifically for the BMW E85 Z4M. It combines the unmistakable, race-inspired induction sound of the iconic CSL Airbox with the smooth driveability and plug-and-play simplicity of a conventional intake system.

Previously, Z4M owners seeking the CSL airbox sound had to remove the MAF sensor, requiring costly ECU conversions or custom remapping. These setups often compromised throttle response, low-speed drivability, and overall refinement.

The Eventuri Hybrid Airbox eliminates these compromises. By retaining MAF compatibility, it delivers the signature CSL induction sound and performance gains without the need for an ECU remap, while maintaining factory-like drivability, smooth power delivery, and straightforward installation.

The Eventuri Difference

At the heart of the system is Eventuri’s patented Venturi Carbon Fiber Housing, engineered to provide an aerodynamically efficient airflow path to the engine. Rather than using a conventional cone filter with a simple heat shield, the housing features a unique Venturi design that promotes laminar airflow and reduces aerodynamic drag on the engine.

The result is a more efficient intake system capable of delivering improved performance, enhanced throttle response, and an engaging induction sound while preserving excellent everyday drivability.

For more information about the patented housing design and the engineering behind the system, click HERE.

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