Eventuri E46 M3 Hybrid Carbon Airbox System

Eventuri E46 M3 Hybrid Carbon Airbox System

Part # EVE-E46ABX-CF-INT

The Eventuri Hybrid Carbon Airbox System for the BMW E46 M3 delivers the unmistakable CSL induction character while retaining full MAF functionality and OEM-level drivability. Developed through extensive CFD analysis and real-world testing, this system provides a seamless plug-and-play solution without the need for an Alpha-N conversion or ECU recalibration.

At the core of the system is a prepreg carbon fiber plenum engineered to resonate under load, producing the signature CSL-style intake sound while maintaining a perfectly stable airflow path for the MAF sensor. The internal geometry has been optimized to ensure even airflow distribution to all six cylinders, eliminating the starvation and turbulence issues common with traditional airbox conversions.

The integrated snorkel incorporates a CNC-machined MAF boss for precise sensor placement, while the patented Eventuri carbon Venturi filter housing accelerates airflow toward the plenum and maintains laminar flow conditions. A dedicated carbon cold-air scoop channels ambient air from the brake duct directly to the intake mouth, reducing intake air temperatures without compromising brake cooling performance.

Manufactured from 100% prepreg carbon fiber and assembled with CNC-machined hardware and stainless reinforcement rings, the system delivers long-term durability, OEM fitment, and a transformative driving experience.

Configuration    Part Number    Best For
Hybrid Airbox + Full Carbon Intake    EVE-E46ABX-CF-INT    Vehicles upgrading from the factory airbox
Hybrid Airbox Only – reuse existing Eventuri intake    EVE-E46ABX-CF-PLM    Existing Eventuri intake owners
Product Details

Engineered for BMW E46 M3 with S54 engine
Authentic CSL induction sound with full MAF compatibility
No ECU conversion or tuning required
CFD-optimized internal plenum geometry
Patented Eventuri Venturi carbon filter housing
Prepreg carbon fiber construction – autoclave cured
Carbon airbox snorkel with CNC-machined MAF boss
Six thermoplastic intake trumpets with CNC stainless reinforcement rings
Carbon fiber cold-air scoop with CNC-machined collar
Stainless steel mounting brackets and flanges
CNC-machined breather adapters
Custom EPDM flexible coupler and silicone hoses
OEM-level fitment and drivability
What’s Included – Full System (EVE-E46ABX-CF-INT)

Carbon fiber main airbox
Carbon fiber snorkel with integrated MAF tube
Carbon Venturi filter housing
Bespoke high-flow dry filter
Carbon cold-air scoop
Six pre-installed intake trumpets with reinforcement rings
Stainless mounting hardware and brackets
Breather adapters, hoses, couplers, and installation hardware
What’s Included – Airbox Only (EVE-E46ABX-CF-PLM)

Carbon fiber main airbox
Carbon fiber snorkel with integrated MAF tube
Six intake trumpets with reinforcement rings
Stainless mounting hardware and brackets
Breather adapters, hoses, couplers, and installation hardware
Vehicle Applications

BMW E46 M3 (2001–2006)
S54 engine
LHD and RHD compatible
Notes

Configuration selection required before ordering
For vehicles upgrading from the factory airbox select the full intake system
For vehicles already equipped with an Eventuri intake select the airbox-only option
Recommended for SMG models: BMW M3 CSL OE SMG fluid reservoir and bracket
Replacement filter (intake housing only): 1 × EVE-661-G2-FTR
Designed and hand-assembled in the UK
This item is not eligible for return
Warranty coverage and damage-in-transit support are fully provided

RETURNS

• Returns are accepted within 30 days after confirmed delivery of the item.
• There will be a 20% restocking fee assessed for all items returned. Restocking fee may be waived depending on a case by case situation. If there are any more questions or concerns, please contact us immediately for more info on restocking fees.
• If you would like to return an item please contact us as soon as possible, and after approval of a return we will give you instructions on how to complete the return.
• ***ALL RETURNED ITEMS MUST BE IN BRAND NEW CONDITION.
• The buyer is responsible for all return shipping fees unless previously discussed with our sales team.
• After the returned item has been received we will check the item to verify and once approved you can expect your refund within 3-5 business days or sooner.
• ALL RETURNS ARE ONLY ACCEPTED IF ITEMS HAVE NOT BEEN INSTALLED ON THE VEHICLE, ALTERED, TAMPERED AND OR DAMAGED BY INSTALLING PARTY. *** PLEASE CHECK ITEMS THOROUGHLY BEFORE INSTALL!
• Special ordered items that have been shipped are NOT ELIGIBLE FOR RETURN! Please contact us before purchasing for more information.

ORDER CANCELLATIONS

• You may cancel your order before it has been processed and shipped out and receive a full refund.
• If you would like to cancel an order after the item(s) have been shipped out your item is subject to the 20% restocking fee.