Presenting a World first – the Eventuri Hybrid Airbox System, a breakthrough intake solution for the iconic BMW E46 M3. This system delivers the aggressive, race-inspired sound of the CSL Airbox with the seamless driveability and plug-and-play simplicity of a traditional intake. Until now, E46 M3 owners wanting the CSL airbox sound had to compromise on running the engine without the MAF sensor, often leading to expensive ECU conversions or remaps, where throttle response and driveability were negatively affected. Our Hybrid Airbox solves this problem and delivers the sound and power of a CSL airbox without the need for a remap, as well as the driveability and smooth performance delivery of a regular intake.

The Eventuri Difference

The airbox uses our Patented Venturi Carbon Fiber Housing which provides an aerodynamically efficient airflow path. Not just another cone filter with a heat shield but a unique design which invokes the Venturi affect and maintains laminar flow conditions to reduce the drag on the engine.

Part Numbers:

• EVE-E46ABX-CF-INT : BMW E46 M3 Hybrid Carbon Airbox with Full Carbon Intake
• EVE-E46ABX-CF-PLM : BMW E46 M3 Hybrid Carbon Airbox without Intake for existing Eventuri Intake owners

The Eventuri E46 M3 Hybrid Airbox System comes in 2 configurations, with and without the Eventuri intake. We are offering the airbox without the intake to allow existing E46 M3 owners with Eventuri intakes to be able to reuse their filter housing and scoop. The Hybrid Airbox system consists of a number of components engineered to perform a specific purpose and fabricated to the highest of standards. Here are the details for each component and the design ethos behind them:

The full Hybrid Airbox with intake configuration consists of:

• 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 PACKAGE

We are providing all the parts required to install the airbox and get the car on the road. Usually with CSL style airboxes, there are additional parts required such as the ECU tune and breather pipes. Since our airbox uses the OEM MAF Sensor, there is no need for an aftermarket tune and we also provide the breather hoses. Here is a cost breakdown of additional parts required for CSL style airboxes. The only part required would be the SMG reservoir relocation kit.

MAIN AIRBOX ASSEMBLY

The Main airbox section houses the 6 trumpets as well as the breather system connectors. Made from prepreg carbon fiber, the airbox has been designed to resonate under load and produce the sought after CSL sound. One of the challenges of the construction was to ensure the long-term reliability of the interface between the trumpets and the airbox. This was resolved by using mechanical fasteners and gaskets to ensure an airtight seal which would not be affected by heat cycles and vibrations. A similar method was also used for the breather adapters.

The trumpets have been made with a glass fiber reinforced thermoplastic. The injection molding process ensures accuracy while keeping the inside surfaces smooth for airflow. This was more advantageous over making each one in carbon fiber as we can ensure perfect form for each trumpet with an accuracy not attainable with carbon. We also added CNC machined stainless steel rings to the trumpets to ensure that they do not deform when the silicon couplers are tightened onto them.

AIRBOX SNORKEL

The snorkel or lid of the airbox smoothly channels airflow from the intake to the trumpet area. This section also incorporates the MAF tube section where the OEM sensor is secured to a CNC machined MAF boss. The snorkel secures to the main airbox section using custom made screws which cut into plastic securing clips ensuring that they do not come loose under vibration.

CFD OPTIMISED The overall shape of the airbox was optimised over several iterations using CFD simulations to ensure the trumpets had adequate flow without suffering from starvation due to restrictions in geometry or turbulence.

INTAKE HOUSING ASSEMBLY

The filter housing comprises of our bespoke generation 2 filter, stainless steel bracket and the carbon fiber housing. The carbon pod shrouds the reverse mounted filter and smoothly shapes the airflow down to the plenum. This is a key feature of the intake design where we have removed the tortuous flow path of the OEM airbox and therefore reduced the pressure loss through the whole system. This also ensures that the airflow is smooth when entering the MAF tube section of the airbox to allow the sensor to operate without errors.

PATENTED TECHNOLOGY

Our patented filter housings have a smooth reduction in cross sectional area as they shroud the filters and taper down to the tubing. This geometry invokes the Venturi effect where the airflow accelerates whilst maintaining laminar conditions. It can be thought of as a large velocity stack – below is a diagram to show the comparison between our patented design and a regular intake system. Our bespoke filters aid the airflow moving through the housings and allow for an even velocity profile as the airflow exits the housings. Further details can be read in the Technology and Filters pages.

COLD AIR SCOOP

100% Prepreg carbon fibre with a CNC machined collar – the air scoop forces ambient air directly into the filter opening. This scoop simply clicks into place in the front right hand brake duct and effectively saturates the mouth of the intake with cold air. It has been designed to take up half the height of the duct in order to allow airflow to still continue through the duct for the brakes. The scoop is so effective that even after a hard drive, the aluminium cowl at the mouth of the intake will still feel cold to touch.

FULL ASSEMBLY

DYNO TESTING

This intake has been independently dyno tested by Dream Automotive in the UK. Tests were done back to back against the stock airbox and several runs were taken with each configuration. The dyno results show a consistent gain throughout the RPM range which can be attributed to the smoother pathway through the intake and airbox to the throttle bodies. The performance gain translates on the road to increased part throttle and full throttle response with the car pulling much more eagerly to the redline.

Features

• Carbon fibre heatshields
• Carbon intake pipes
• Bespoke fitting heat shields that utilises the OEM CAI.
• Improves performance and throttle response
• Enhanced induction and turbo sound
• Full fitting kit and instructions
• Easy to clean using our filter maintenance kit – CK-003

What Does It Do?

This performance intake kit allows improved air flow and sound over the standard restrictive factory equipment.

What Will I Get?

Ramair Filters utilise the top-quality components in all their kits see below for what this kit will include:

• Carbon fibre heat shields
• Proram pleated filters
• Oversized carbon intake pipes
• Silicone couplers
• Full fitting kit with easy step by step instructions

Features

• Carbon fibre heatshields
• Carbon intake pipes
• Bespoke fitting heat shields that utilises the OEM CAI.
• Improves performance and throttle response
• Enhanced induction and turbo sound
• Full fitting kit and instructions
• Easy to clean using our filter maintenance kit – CK-003

What Does It Do?

This performance intake kit allows improved air flow and sound over the standard restrictive factory equipment.

What Will I Get?

Ramair Filters utilise the top-quality components in all their kits see below for what this kit will include:

• Carbon fibre heat shields
• Proram pleated filters
• Oversized carbon intake pipes
• Silicone Couplers
• Full fitting kit with easy step by step instructions

Fitment Compatibility Chart

This product fits the following:

The APR Full Intake System is perfect for Audi enthusiasts seeking the ultimate intake upgrade. Unlike others that address only a portion of the intake system, requiring the inlets and outlets to neck down to the factory diameter for compatibility, this comprehensive solution replaces every component from the inlet scoop to the turbocharger inlet. This eliminates restrictions throughout the system, ensuring unmatched airflow and turbo performance with the largest inlet physically possible.

Key to the system’s superior performance is its optimized design. Making the inlet as large as possible is the goal but space is extremely limited. By maximizing the internal diameter with thin-walled heat-resistant composite materials, APR achieves an impressive 31% more airflow compared to stock. This translates directly into improved turbocharger efficiency, faster spool times, and significant power gains, adding +19 AWHP and +20 AWFT-LBS of torque when paired with the APR Stage 1 (93) tune.

Additionally, the APR Full Intake System is engineered with functionality, performance, and sound in mind. The PEX airbox shields the filter from the engine bay, while its thoughtfully placed cutouts provide additional airflow and a refined engine sound. A massive 7” x 7” washable pleated cotton gauze filter further enhances performance with vast filtration surface area while ensuring long-lasting usability.

Whether you’re focused on unlocking power, enhancing turbo performance, or future-proofing your vehicle for upgrades, the APR Full Intake System is the only intake you’ll ever need.

Features:

• Complete System Replacement: Includes inlet scoop, airbox, filter, and turbo inlet pipe, eliminating all factory restrictions.
• +19 AWHP & +20 AWFT-LBS Power Gains: When paired with APR Stage 1 (93).
• 31% More Airflow: Improved from 400 CFM (stock) to 525 CFM.
• Enhanced Turbocharger Efficiency: Reduces pressure drop, allowing the turbo to spool faster and operate more efficiently.
• High-Temperature Composite Turbo Inlet: Enables thin-wall tubing for maximum internal diameter and airflow.
• PEX Airbox: Heat-shield design with additional flow paths in low temperature zones.
• Massive Washable Filter: 7” x 7” pleated cotton gauze with a 5.5” frontal inlet and 4” outlet for superior filtration and performance.
• Future-Proof Design: Billet turbo inlet adapter accommodates larger turbos with a simple swap.
• All-Inclusive Kit: Includes OEM gaskets, clamps, and hardware for an easy, bolt-on installation.
• Emissions-Friendly: Requires no tuning and is compliant with emissions standards.
• Improved Engine Sound: Adds a sporty, refined tone without being overbearing.

Our G8x M3/M4 scoops are a one-piece design which blend form and function to bring a noticeable enhancement to the M3 and M4 platform.

Our G8x M3/M4 scoops are a one-piece design which blend form and function to bring a noticeable enhancement to the M3 and M4 platform.

Features

• Improved throttle response
• Black powdercoated heat shield and inlet pipe
• Dyno results: max gains 12-14bhp (this may vary dependant on vehicle)
• Easy to maintain dry pleated filter
• Cold air straight to the turbo charger

What Does It Do?

This induction kit delivers increased air flow and induction noise over the standard restrictive air box. Whether this kit is being installed to a standard vehicle or to a already tuned vehicle, you can be sure of the positive performance gains this will deliver.

What Will I Get?

MST Performance utilise the top quality components in all of their kits see below for what this kit will include..

• Black powdercoated heat shield
• Black powdercoated inlet pipe
• Red pleated filter
• Silicone joiner
• Full fitting kit with easy step by step instructions

Throughout the development process, multiple designs were modeled, prototyped, and tested – all to ensure that the P34 Cold Air Intake System delivers measurable performance benefits and superb fitment. The result is a partially-enclosed airbox which uses the factory fresh air inlet duct and heat shield, while housing a massive 5″ inlet conical air filter, and a matching CFD-optimized filter tube.

MINIMIZING UNNECESSARY FILTER SHROUDING:
034Motorsport focuses on optimizing every aspect of the intake system across a broad range of variables and compromises. A critical component of a high-flowing performance intake is the ability for air to flow around and into the filter. If the air cannot flow freely around the filter, it will be restricted from getting into it.

Many aftermarket kits fit too large of a filter in an enclosure that cannot accommodate its size, thus choking the filter and reducing its overall flow. This often happens when a product is engineered for one variable at the expense of others. 034Motorsport conducted extensive tests and refined its development of the intake design to allow for maximum airflow surrounding the air filter, allowing for optimal airflow to, and through, the filter.

The final result is the right size filter in the right size filter housing, creating maximum airflow and performance with OEM level filtering; the ultimate goal of any intake system. Be cautious of any intake that brags only of air filter size, without taking into account the detrimental effects of shrouding the filter.

Filter Shrouding
P34 COLD AIR INTAKE SYSTEM FEATURES:
Developed In-House by 034Motorsport’s Engineering Team
Dyno-Proven Horsepower & Torque Gains
Increased Airflow to Turbocharger Inlet
Enhanced Engine & Induction Sounds
Improved Throttle Response
Superb Fit & Finish to Match Factory Engine Bay
Stealthy OEM+ Design Utilizes Factory Inlet & Heat Shield
Massive 5″ Inlet Conical Air Filter
CNC-Machined Billet Aluminum Velocity Stack
Large-Diameter CFD-Optimized Turbo Inlet Hose
Securely Installs Using Factory Mounting Grommets
Simple, Straightforward Installation Instructions
APPLICATION GUIDE:
2018 – Present Audi S4 (B9) 3.0 TFSI
2018 – Present Audi S5 (B9) 3.0 TFSI
WHAT’S INCLUDED:
OEM Quality Plastic Airbox
5″ Inlet Conical Air Filter
CNC-Machined Billet Aluminum Velocity Stack
Reinforced CFD-Optimized Silicone Turbo Inlet Hose
CNC-Machined Billet Aluminum Mounting Buttons to Reutilize OE Rubber Mounts
Misc. Hardware
EMISSIONS DISCLAIMER:
This product is sold for racing use as well as use on vehicles not registered for on highway use.
By purchasing this product, you understand that this product is sold for racing use as well as used on vehicles not registered for on highway use, and that it is not legal for use on highway or street vehicles.

*Some photos show our optional F90 M5 Intake system available separately.
Fitment for F90 M5, F92 M8, also fits with stock airboxes.

Presenting the perfect addition to our F90 M5 intake system to optimise the flow path all the way to the turbos. Our carbon inlets have a larger volume than the stock inlets by maintaining a larger diameter all the way to the turbos. The stock inlets narrow down immediately after the connection to the intake which creates a restriction especially at higher boost levels. We have alleviated this restriction and also designed the curvature to be as smooth as possible allowing the turbos to reach peak boost sooner.

During development we also tested inlets with larger openings and redesigned the intake to have an oversized connection to the inlets. However, tests showed no further benefit and so we proceeded with this version, which allows our current intake to be used without any modification while producing the best performance gains.

The BMW X3 M40i Eventuri intake has been developed to provide the turbo with a less restrictive flow path whilst maintaining low inlet temperatures.

In the M40i, the intake system’s proximity to the exhaust manifold poses a challenge, rapidly heating the engine bay. Elevated temperatures compromise engine performance, necessitating a solution that ensures minimal intake air temperatures (IATs). Our solution comprises of a fully sealed intake system, designed to counteract heat soak and prevent the turbo from drawing in heated air.

Moreover, our sealed airbox features a heat shield lined with gold reflective, effectively minimizing radiative heat transfer from the exhaust manifold. To optimize airflow volume, we’ve maximized the airbox size, incorporating a recess to accommodate the strut brace seamlessly.

Replacing the stock convoluted intake tube, our design employs a prepreg carbon tube, boasting a much larger internal volume with an internal diameter of 109mm (4.3″) that seamlessly tapers down to match the turbo inlet, ensuring an uninterrupted airflow path. Complementing this design is a custom-made high-flow dry filter, rigorously tested for ISO-certified filtration performance and boasting a larger filtration area compared to the stock filter.