An internal windage tray keeps the differential fed with oil under sustained load and hard cornering. The extra-wide tray works with Drexler and other mechanical LSDs straight out of the box, with no trimming needed.

Features

• Up to 2 litres oil capacity
• Internal windage tray
• Internal and external cooling fins
• -8AN port with M22 adaptor for an external oil cooler
• Compatible with Drexler and mechanical LSDs
• CNC machined from 6061-T6 billet aluminium, direct replacement for the factory pan

Fitment

• BMW F87 M2 (N55)
• BMW F87 M2 Competition / CS (S55)
• BMW F80 M3 (S55)
• BMW F82 / F83 M4 (S55)

On its own it reduces drivetrain movement under load, on the road or on track. Combined with the MMX Dual Differential Mount set to Lifted and the Rear Diff Bushes, it completes the four-point system and raises the diff by 10mm to correct driveshaft geometry on lowered cars.

Features

• CNC machined from 6061-T6 billet aluminium
• Reduces differential movement under load
• Corrects driveshaft angles on lowered cars when used as part of the full system
• Direct replacement, no cutting or drilling

Fitment

• BMW G87 M2, G80 / G81 M3, G82 / G83 M4
• BMW F87 M2, F80 M3, F82 / F83 M4

Use one for a simple rear upgrade, or two alongside the MMX Dual Differential Mount and Front Lift Mount / Cradle to complete the full four-point differential system.

Features

• Billet aluminium body with polyurethane inserts
• Reduces differential movement under load
• Direct replacement, no modification required
• Sold individually

Fitment

• BMW G87 M2, G80 / G81 M3, G82 / G83 M4
• BMW F87 M2, F80 M3, F82 / F83 M4

Ride-height adjustment is built into the mount. Set to the Lifted position and paired with the MMX Front Differential Lift Mount / Cradle (MMR55-1604) and Rear Diff Bushes (MMR55-1603), it raises the differential by 10mm at all four mounting points, correcting driveshaft angles on lowered cars.

Features

• CNC machined from 6061-T6 billet aluminium
• OEM or Lifted (+10mm) mounting positions
• Direct bolt-in replacement for the factory mount, no cutting or drilling
• Part of the modular MMX F8x differential system
• Supplied without bushes (see MMR55-1603)

Fitment

• BMW F87 M2 / M2 Competition / M2 CS
• BMW F80 M3
• BMW F82 / F83 M4

The 80A polyurethane bushing is firm but keeps a small amount of the articulation the factory design relies on, so you get extra precision with only a minimal increase in NVH, suitable for road and track use.

Features

• Black anodised 6061-T6 CNC machined aluminium housing
• 80A grey polyurethane bushings
• Works with the factory shifter or a short shift kit
• Direct replacement, no cutting, drilling or modification

Fitment

• Manual BMW G87 M2, G80 / G81 M3, G82 M4

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: