MAF Air Intake Tube Pair for BMW X5M X6M (2015-2017) 4.4L

High-Flow MAF Air Intake Tube Pair for 2015-2017 BMW X5M,X6M (F85/F86)

What it Does: The MAF Air Intake Tube Pair replaces the restrictive factory plastic mass air flow housings on the 2015-2017 BMW X5M and X6M to stabilize sensor voltage readings and eliminate intake airflow turbulence.

The Stock BMW X5M,X6M Intake Limitation

Factory intake plumbing on the F85 and F86 platforms relies on multi-piece composite plastic housings that endure severe heat soak from the central hot-vee turbocharger assembly. Over time, plastic thermal cycling invites warpage and potential vacuum leaks around sensor bungs. Furthermore, internal wall stepping and core shift in OEM molded plastic disturb boundary-layer airflow, producing turbulent cross-flow over the mass air flow sensor wire under high compressor demand.

The Engineering Solution

Engineered specifically for the twin-bank S63 twin-turbo 4.4L engine, this matched pair features continuous 3-inch (76mm) outer diameter aluminum tubing with ultra-smooth internal walls for stable, laminar airflow. Precision CNC-machined MAF sensor flanges are TIG welded directly to each housing, guaranteeing an airtight seal with factory O-rings and retaining exact OEM sensor depth. The compact 4.7-inch (120mm) architecture allows clean integration into tight engine bays, finished in a durable gloss black anodized coating that resists under-hood chemical exposure and corrosion.

What's Included

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

Technical Specifications

Compatibility

• 2015-2017 BMW X5 M (F85) 4.4L Twin-Turbo V8 S63
• 2015-2017 BMW X6 M (F86) 4.4L Twin-Turbo V8 S63

Frequently Asked Questions & Fitment Warnings

Does this fit the F85/F86 X5M,X6M?

Yes, this is a direct fit for the 2015-2017 BMW X5M,X6M equipped with the S63 4.4L twin-turbo V8 engine.

Are new mass air flow sensors included with these tubes?

No, you transfer your factory OEM sensors directly into the CNC-machined flanges using the included mounting hardware.

The BMW Precision Standard

Built to meet strict European high-performance tolerances, these fabricated aluminum MAF housings maintain clean volumetric airflow signals to protect sensitive DME fuel trims and prevent lean-condition check engine lights under load.