MAF Air Intake Tube Pair for BMW X5 xDrive50i (2014-2017) 4.4L

High-Flow Billet Aluminum MAF Air Intake Tube Pair for 2014-2017 BMW X5 (F15)

What it Does: The MAF Air Intake Tube Pair replaces the restrictive factory plastic mass air flow sensor housings on the 2014-2017 BMW X5 to optimize laminar airflow dynamics and improve twin-turbo throttle response.

The Stock BMW X5 Intake Restriction and Heat Degradation

The factory intake system on the F15 platform routes metered air through ribbed, injection-molded plastic MAF housings that degrade over time from severe underhood heat cycling. The twin-turbo setup of the N63TU engine produces intense thermal loads in the hot-vee configuration, causing stock composite housings to warp, crack, or develop post-MAF vacuum leaks that trigger lean air-fuel ratio codes (CEL). Additionally, internal surface irregularities and stepped transitions within the OEM plastic design introduce boundary-layer turbulence, compromising signal voltage accuracy at the hot-film sensor element during high-demand boost transitions.

The Engineering Solution

Constructed from mandrel-formed 3-inch (76mm) aluminum tubing, this matched housing pair provides a continuous, uniform internal diameter that eliminates turbulence across the sensor window. Each tube features a CNC-machined MAF mounting flange precision TIG-welded to preserve exact OEM sensor penetration depth and orientation, ensuring fuel trims stay within factory parameters. Anodized in hardcoat gloss black to resist corrosion and chemical contact, the compact 4.7-inch (120mm) length integrates seamlessly with factory or aftermarket 3-inch silicone couplers while dissipating thermal energy faster than composite plastic.

What's Included

• 2 x 3" Aluminum MAF Air Intake Tubes
• 4 x MAF Sensor Mounting Screws

Technical Specifications

Compatibility

• 2014-2017 BMW X5 xDrive50i (F15) 4.4L V8 Twin-Turbo

Frequently Asked Questions & Fitment Warnings

Does this fit the F15 X5?

Yes, this is a direct fit for the 2014-2017 BMW X5 equipped with the N63TU 4.4L twin-turbo V8 engine; it does not fit sDrive35i/xDrive35i inline-6 models or diesel variants.

Are new mass air flow sensors included with these intake tubes?

No, you must transfer your factory OEM sensors into the CNC-machined flanges using the supplied mounting screws.

The BMW Precision Caliber

Engineered to meet rigorous European tolerances, this intake upgrade delivers steady sensor readings to prevent check-engine lights while maintaining true OEM-level metering reliability under peak boost.