Eventuri Black Carbon Intake for BMW G01 X3 M40i / G02 X4 M40i B58

The BMW X3 M40i Eventuri intake is engineered to optimize airflow and maintain low intake air temperatures for enhanced turbo performance.

Crafted from Prepreg Carbon Fiber, the airbox ensures a tight seal around the filter to guard against engine bay heat. Positioned adjacent to the exhaust manifold, sealing the intake tube is vital to prevent heated air from entering. A laser-cut plate with a rubber sealing strip secures the intake tube to the airbox, while an additional heat shield with a gold reflective layer minimizes heat soak from the exhaust manifold side.

The factory inlet tube is flexible and convoluted, and its many internal ridges add turbulence to the airflow. Eventuri replaces it with a smooth carbon tube of larger internal volume, taking the internal diameter from the factory 80.8mm to 109mm, an 82% increase in cross-sectional area, with CNC-machined fittings for the temperature sensor and breather.

The cone filter is built from double-layered non-woven mesh on a stable urethane base, ISO tested to OEM filtration standards, cleanable and heat-resistant. An internal flow-guiding cone helps air converge with fewer stagnation points, and the filter has far more surface area than the stock panel filter.

Features

• Fully sealed prepreg carbon airbox to keep out engine-bay heat
• 109mm carbon inlet tube, 82% more area than the 80.8mm factory tube
• Gold reflective heat shield on the exhaust-manifold side
• Airbox recessed to clear the factory strut brace
• Turbo flanges supplied for both pre-LCI and LCI cars

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 flanges (pre-LCI and LCI)
• Heat shield with gold reflective backing
• Laser-cut stainless steel brackets
• Silicone coupler with OEM-specification clamps

Specifications

• Part number: EVE-GXXB58-CF-INT
• Brand: Eventuri
• Type: sealed carbon intake system
• Material: prepreg carbon fiber
• Finish: gloss
• Engine: BMW B58 3.0L turbo I6
• Replacement filter: one Eventuri Type L (EVE-15144-G2-FTR)
• Made in: UK

Fitment Notes

• Fits the G01 X3 M40i and G02 X4 M40i. Fitment follows the engine and turbo inlet layout, so confirm your engine before ordering.
• Does not fit the S58 X3 M / X4 M, non-M40i models or the newer G45 X3.
• Use the turbo flange that matches your car (pre-LCI or LCI) during install.
• Not eligible for return once opened.

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.

Vehicle Fitment