MAF Air Intake Tube Pair for BMW 550i GT (2014-2017) 4.4L

High-Flow Aluminum MAF Air Intake Tube Pair for 2014-2017 BMW 5 Series (F07)

What it Does: The MAF Air Intake Tube Pair replaces restrictive factory intake housings on the 2014-2017 BMW 5 Series to smooth intake airflow and eliminate post-MAF air turbulence into the turbochargers.

The Stock BMW 5 Series Intake Restriction

Factory intake housings on the N63B44O1 (N63TU) engine utilize molded composite plastics that develop micro-fractures, warp from severe "hot-vee" turbocharger heat soak, and introduce internal aerodynamic drag. Furthermore, the OEM corrugated profile and step-downs disrupt laminar airflow across the dual mass air flow sensor probes. This boundary-layer separation causes erratic frequency readings, skewing short-term fuel trims and limiting boost ramp rates on the twin-turbocharged 4.4L platform under heavy load.

The Engineering Solution

Engineered as a matched pair for dual-bank intake systems, these replacement housings are constructed from 6061 billet aluminum tubing featuring a consistent 3-inch (76mm) outer diameter and micro-finished, smooth inner bore walls. Each unit incorporates a precision CNC-machined MAF mounting flange, TIG welded directly to the body to guarantee a leak-free sensor seat without requiring mechanical adapters. An anodized gloss black finish resists corrosion and thermal degradation, while the compact 4.7-inch (120mm) length integrates cleanly into the tightly packaged F07 engine bay with standard silicone couplers, maintaining clean, stable sensor velocity profiles across the operating band.

What's Included

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

Technical Specifications

Compatibility

• 2014-2017 BMW 550i Gran Turismo (F07) 4.4L N63 Twin-Turbo V8

Frequently Asked Questions & Fitment Warnings

Does this fit the F07 5 Series?

Yes, this is a direct fit for the 2014-2017 BMW 5 Series equipped with the N63TU 4.4L twin-turbo engine.

Are new mass air flow sensors included with this kit?

No, you will transfer your factory OEM MAF sensors directly into the integrated CNC flanges using the included mounting screws.

The BMW Precision Standard

Maintain precise factory fuel trimming and clean engine management operation under peak boost with thermal-resistant billet aluminum engineered to meet rigorous European vehicle tolerances without triggering check engine lights.