Eventuri – E46 M3 Black Carbon Intake

Performance increase = 10-15hp, 8-12ft-lb

The E46 M3 intake system is a result of extensive data logging, dyno testing and design optimisation. Our aim was to develop an intake system for the S54 engine which worked with the stock ECU map and MAF sensor and produced a genuine improvement in the driving experience.

The Eventuri Difference

The E46 M3 Eventuri system uses our Patent Pending Carbon fibre Housing which provides an aerodynamically efficient airflow path from the filter to the MAF tube. Not just another cone filter with a heat shield but a unique design which invokes the Venturi affect. You can read more about the housing design and how it works here.

Product Details

Part Numbers:

EVE-E46-INT : BMW E46 M3 Black Carbon intake

EVE-E46-KV-INT : BMW E46 M3 Kevlar intake

Each component is engineered for a purpose and to a very high standard. Each kit consists of:

• 100% Prepreg Carbon Fibre Intake Housing
• Anodised Aluminium inlet cowling
• High Flow Filter
• CNC Machined MAF tube
• 100% Prepreg Carbon Fibre Air Scoop with CNC machined aluminium collar
• 3 Aluminum heat shields
• High quality Silicon coupler with BMW specification hose clamps
• Installation instructions

Carbon Intake Housing Assembly

Made from 100% prepreg carbon fibre of the highest quality, the workmanship on the housing is second to none. This encapsulates the filter and is mated to an anodised aluminum inlet cowl to ensure a smooth inlet flow path. The filter itself is a deep pleated, high flow double cone configuration which is dry to avoid damaging the MAF sensor. Finally the assembly is then mated to an aluminium heat shield which effectively shrouds the intake from engine bay heat and captures the ambient air being diverted from the scoop. Also notice the rubber spacer on the mount of the heat shield – this is for the headlight module to sit on so that it remains at the right height – small details are important!

Carbon 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!

MAF tube

The MAF tube is CNC machined from aluminium and then anodised. The MAF boss itself is machined from an engineering plastic to minimise the heat soak into the sensor through conduction. We have incorporated a machined recess on one side to allow the OEM rubber gasket from the stock airbox to be used for a perfect seal into the stock elbow.

Heat Shields

There are 3 aluminium heat shields. The main shield is part of the intake assembly as above. There is then an extension shield which fits onto the main shield and blocks hot air from the radiator. The last shield secures to the chassis underneath the carbon housing to minimise direct heat soak from the block. We used neoprene on the main shield to insulate it for optimum function in keeping inlet air temperatures as low as possible.

These components come together to improve the efficiency of the engine intake. The result – more power, throttle response and sound.

Performance

Below is a dyno graph showing the comparison between the Eventuri and the stock airbox on a standard car with just a rear exhaust and standard map. As you can see, power and torque are increased through a large portion of the rpm range not just at the peak. This translates on the road to increased part throttle and full throttle response with the car pulling much more eagerly to the redline. The testing was done on the same day back-to-back and temperatures were monitored to ensure consistency.

Although the Eventuri system does not require a remap we have seen further gains when the E46 M3 is subsequently remapped. The graph below shows another E46 M3 with 3 curves stock, Eventuri and then Eventuri with a remap. In this instance the car was remapped by Evolve Automotive.

Fitment

Eventuri’s Warranty

For information on Eventuri’s warranty terms and conditions, please click here.

Please Note: This product does not have live inventory levels. This means there may be a delay in shipping based on manufacturer’s inventory stock and fabrication times. You will be notified by our customer service staff should there be any delay. Your satisfaction is the most important, so feel free to inquire of any questions or advise of any concerns you may have. Thank you.

Purchase Disclaimer: You are hereby informed and warned to check your local, state, and federal laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts. Bolt Motorsports does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Bolt Motorsports will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls. In accordance with local laws and regulations, Bolt Motorsports will not ship parts to locations where usage or installation of said part would be in violation of the aforementioned acts.