Eventuri Black Carbon Intake System for G0X BMW X3 and X4 M40i [EVE-GXXB58-CF-INT]

Eventuri Black Carbon Intake System for G0X BMW X3 and X4 M40i [EVE-GXXB58-CF-INT]

Eventuri develops the X3 M40i intake to deliver a less restrictive airflow path while maintaining low inlet temperatures. Given the intake’s proximity to the exhaust manifold on the M40i, under-hood heat can rise quickly and elevate IATs; Eventuri counters this with a fully sealed air box that prevents the turbo from ingesting hot engine-bay air. The airbox integrates a gold-lined heat shield to limit radiative heat transfer from the manifold and is maximized in volume with a dedicated recess for the strut brace to increase available airflow. Replacing the factory convoluted tube, a prepreg carbon intake tube with a 109mm internal diameter tapers smoothly to the turbo inlet for an uninterrupted flow path. A custom high-flow dry filter, validated to ISO filtration standards and offering a larger surface area than stock, completes the system for consistent, low-restriction performance.

Carbon Fiber Airbox

Eventuri constructs the airbox from prepreg carbon fiber to fully shield the filter from engine-bay heat. Positioned beside the exhaust manifold, the airbox encapsulates the filter while maintaining a generous internal volume. A laser-cut plate with an integrated rubber sealing strip secures to the airbox, allowing the intake tube to pass through while preventing heated air from entering. To further mitigate heat soak, an additional heat shield on the manifold side finished with a gold reflective layer reduces radiant heat transfer.

Carbon Inlet Tube

Eventuri replaces the OEM flexible, convoluted inlet with a smooth, larger-volume carbon tube to eliminate turbulence and stabilize flow. Maximized for capacity, the design increases internal diameter from the factory 80.8mm to 109mm an 82% gain in cross-sectional area then tapers seamlessly to the stock turbo inlet to preserve laminar conditions. Precision CNC-machined provisions for the temperature sensor and breather adapter ensure an exact, OE-quality integration.

Bespoke Cone Filter

Features

• Fully sealed prepreg carbon airbox to block engine-bay heat
• Gold-lined heat shield to cut radiant heat from manifold
• 109mm smooth carbon inlet tube, seamless taper to turbo
• 82% larger cross-section vs stock for lower restriction
• ISO-validated, cleanable high-flow dry cone filter with larger media area
• CNC provisions for temp sensor and breather, OE-quality fitment
• Lower IATs and steadier, repeatable performance

What’s Included

• Carbon Fiber Airbox
• Bespoke High Flow Dry Cone Filter
• Carbon Fiber Inlet Tube
• CNC Machined Temperature Sensor Mount
• CNC Machined Breather adapter
• CNC Machined Turbo Flange (both Pre-LCI and LCI versions included)
• Heat Shield with Gold Reflective Backing
• Laser Cut Stainless Steel Brackets
• Silicone Coupler with OEM Specification Clamps

Applications

• BMW X3 M40i: G01 (2017-2024)
  [B58 – 3.0L I6 turbo]
• BMW X4 M40i: G02 (2018-2025)
  [B58 – 3.0L I6 turbo]

Notes

• This item is not eligible for return
• Only compatible with the B58D motor

About Eventuri

Eventuri was founded by a team of engineers and enthusiasts with a background in Aeronautics and tuning – all sharing a passion for cars and performance. After owning various intakes over many years for their own cars and being disappointed with the gains which seldom lived up to their claims – they decided to take things into our own hands and rewrite the book. To set a new benchmark in intake design and technology, above all – to engineer systems which provide real gains and then to publish genuine figures. Their systems are extensively developed using cutting edge design, testing and prototyping methods. With a focus on performance, each design undergoes CFD analysis and is then validated at the prototype stage through volumetric airflow, intake temperature and extensive dynamometer testing. They strive to publish all the development information to illustrate the depths they go to in bringing an intake from concept to reality. Only the best materials are selected for each component – even down to the choice of fasteners and fixings in order to ensure that the quality of the end product is second to none. After many years of disappointment with the usual aftermarket intakes, they are proud to be raising the bar and creating intake systems which are setting a new standard and genuinely improve the performance of your vehicle.