Eventuri Carbon Hybrid Airbox - BMW E46 M3

QT Parts is a Finnish online store.

Our warehouse is located in Nokia, Finland.

You can collect your order directly from us if needed. Simply select “Pickup” at checkout.

Pay securely with multiple payment methods, including invoice and installment plans through Klarna.

The delivery time for products in stock is 1-5 business days. We ship worldwide.

If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch. International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.

Terms for product returns:

• You must return the ordered products within 14 days of receiving
• The products must be unused and without damages
• Commission fee for handling returns is 21,90€
• For product returns, the customer is in charge of the return costs. Only door to door service (Express)
• Shipping costs are not refunded

For international orders sales are final and non-refundable. Once an order is placed, it cannot be canceled or returned. By placing an order, you acknowledge and agree to these terms.

Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.

Pre order / made-to-order products

If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.

If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.

This condition applies to the following product categories:

• Suspension
• Engine Tuning
• Engine Parts
• Exhaust Systems
• Fueling
• Turbochargers/superchargers
• Drivetrain
• ECE-approved Downpipes

All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.

In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.

Eventuri Hybrid Airbox – BMW E46 M3

We present the world's first Eventuri Hybrid Airbox system for the legendary BMW E46 M3. This innovative intake solution combines the aggressive, race-car-like sound of the CSL Airbox with the easy Plug & Play installation of a standard intake manifold.

Previously, E46 M3 owners who wanted the CSL sound were pretty much forced to run without a MAF sensor and undergo expensive software modifications — often at the cost of diminished drivability.

The Hybrid Airbox solves this: you get the CSL sound and performance without engine software changes, while maintaining the smoothness and throttle response of the factory program.

The Eventuri Advantage

The air intake system is based on Eventuri's patented Venturi carbon fiber housing, which ensures highly efficient and streamlined airflow. This is not just a cone filter with a heat shield — the aerodynamic design creates a Venturi effect and laminar flow, reducing engine backpressure and improving power output.

Dyno-tested Performance

The system has been tested by Dream Automotive in the UK. Comparisons were made directly against the stock intake in several consecutive runs. The results show a consistent power increase across the entire RPM range, which translates to sharper throttle response and stronger pulling power right up to the redline in real-world driving.

Power increase with OEM software:
+20–22 hp / +11–18 Nm

The Eventuri E46 M3 Hybrid Airbox system is available in two configurations:
✅ Complete set with intake
✅ Airbox only, suitable for those who already have an Eventuri intake housing and scoop on their E46 M3

The complete Hybrid Airbox configuration includes:

• Carbon Fiber Main Airbox
• Carbon Fiber Airbox Snorkel with MAF tube
• Thermoplastic Molded Trumpets with Stainless Steel Reinforcement Rings
• Carbon Fiber Filter Housing
• Bespoke Dry High Flow Filter
• Carbon Fiber Cold Air Scoop
• Stainless Steel Brackets and Flanges
• CNC Machined Breather Adapters
• Custom EPDM Flexible Coupler
• Silicon Couplers
• Crankcase Breather Hose
• Additional Vacuum Tubing

Complete kit – everything you need included

We supply all the parts required for installing the airbox and getting the car running.
Traditional CSL-style airboxes usually require additional purchases, such as ECU software changes and separate breather pipes.

These are not needed with this kit.
Since the system uses the car's original MAF sensor, ECU tuning is not necessary, and we also supply the necessary breather hoses.

The only possible add-on (for SMG cars only) is the SMG reservoir relocation kit.