Eventuri Hybrid Carbon Airbox BMW E46 M3

The Eventuri Hybrid Airbox System for the BMW E46 M3 combines the aggressive, motorsport-inspired tone of the CSL airbox with the direct-fit convenience of a conventional intake. Previously, E46 M3 owners seeking the CSL airbox tone were forced to run without the MAF sensor, frequently requiring costly ECU modifications that compromised throttle response and driveability.

The Eventuri Hybrid Airbox eliminates this trade-off, delivering the sound and performance of a CSL airbox without requiring a remap. Available in two configurations, with or without the Eventuri intake. Allowing existing Eventuri intake owners to reuse their filter housing and scoop.

Performance gain: 20-22hp / 8-13ft-lb (with OEM ECU tune)

Filter Type:

•  B

Kit Includes (full system):

• Carbon fibre main airbox
• Carbon fibre airbox snorkel with MAF tube
• Thermoplastic moulded trumpets with stainless steel reinforcement rings
• Carbon fibre filter housing
• Bespoke dry high-flow filter
• Carbon fibre cold air scoop
• Stainless steel brackets and flanges
• CNC-machined breather adapters
• Custom EPDM flexible coupler
• Silicone couplers
• Crankcase breather hose
• Additional vacuum tubing

Key Features:

• Retains OEM MAF sensor, no remap required
• CFD-optimised airbox for even airflow distribution across all six trumpets
• Patented Venturi carbon fibre filter housing for laminar flow and reduced intake drag
• Prepreg carbon fibre airbox designed to resonate under load and produce the CSL sound
• Glass fibre reinforced thermoplastic trumpets with CNC-machined stainless steel reinforcement rings
• Carbon fibre cold air scoop installs into the front right brake duct, engineered to occupy half the duct height to allow continued brake cooling airflow

Compatible With:

• BMW E46 M3