Eventuri BMW Carbon Intake

Info

The F8X M3/M4 intake system is one of our most ambitious intake systems to date. Now in the updated V2 design, it features sealed filter housings to maintain a more steady IAT, even while stationary. The new ducts which seal the housings, coupled with our scoops ensures unrestricted airflow whilst maintaining low IATs through cold air saturation. Every detail was taken into account to ensure that we created a flagship intake to set a benchmark for this platform. From the scoops to the ducts to the intake tubes we developed a complete solution to ensure a smooth inlet track with cold air saturation. With a carbon weave to match the OEM M Performance carbon this truly is a new benchmark.

Product Details

The Eventuri F8X M3/M4 intake system consists of a number of components engineered to perform a specific purpose and fabricated to the highest of standards.

Each intake system consists of:

• 2 Carbon Fiber Venturi housings
• 2 High Flow Gen 2 Filters
• 2 Aluminum Cowls for smooth airflow entry
• Left Side Carbon Tube with integrated MAF sensor mount
• Right Side Carbon Tube with integrated MAF sensor mount
• 2 Carbon Fiber Sealed Intake Ducts
• 2 Carbon Fiber Front Scoops
• Laser Cut Stainless Steel Brackets
• High quality Silicon couplers with BMW specification hose clamps

Carbon Filter Housings

The filter housings comprise of the high flow filters, aluminum cowls, V-Band clamp, laser cut brackets and the Patented carbon pods themselves. The carbon pods shroud the reverse mounted filter and smoothly shape the airflow down to the intake tubes. 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.

Carbon Sealing Ducts

The filter housings are positioned with the openings sealed against the carbon ducts. These ducts have been designed to fit over the stock cold air ducting channels and direct ambient air into the filters. These ducts seal the openings of the filter housings and prevent heated air from entering the filters.

Carbon Intake Tubes

Our intake tubes are again crafted from 100% prepreg carbon fiber. Each tube has an integrated MAF sensor mount which is CNC machined from aluminum. The shorter left side tube smoothly transitions from the carbon housing down to the turbo inlet tube. The longer right side intake tube has to clear the fan shroud and strut brace. To do so we employed the same principle as the stock tube in changing the cross section from a circle at the turbo inlet tube to an oval for clearance over the shroud, then back to a circle at the filter housing end. We ensured these transitions were gradual so as not to disrupt airflow, furthermore we maintained the same cross sectional area in order to keep the velocity through the tube constant.

Carbon Air Scoops

The final components in this system are the front scoops – essential to direct ambient air to the ducts and then to the filters.

The scoops were designed for maximum efficiency in directing the incoming air to the stock duct openings. Many aftermarket scoops have a large flat area almost perpendicular to the oncoming air – not great for channeling it into the ducts as the airflow just “hits” this flat portion and creates turbulence.

The Eventuri Scoops have been designed to sit directly behind the front grills to capture as much air as possible and with a continuous curve to the duct opening to ensure this airflow is efficiently channeled. CAD images to illustrate the shape:

Having an effective cold air feed to the filters is an essential part of our design. Simply having some heat shields in place is not an effective means of avoiding heated air from entering the filters unless the shields create an air tight envelope around the filters. The scoops and ducts in our system combine to provide the filter openings with ambient air and maintain low intake air temperature.

Performance

Dyno Testing

Below is a dyno graph showing the comparison between the Eventuri and the stock airboxes on a standard F80 M4. 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. Since dyno results vary between consecutive runs, this graph shows the highest power figure achieved with the stock setup vs the highest figure with the Eventuri.

Since the F80 M4 is sensitive to heat soak, dyno figures can vary between runs – we could have shown the highest figure achieved with the Eventuri VS the lowest achieved with the stock setup, however this would not be a fair comparison. Just to illustrate the variation, here is the graph showing highest Eventuri VS lowest stock which was recorded on the day showing a gain of over 31hp!

Fitment

Eventuri’s Warranty

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

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.