aFe Cold Air Intake System

Fitment: 2015-2019 BMW X5 M (F85) / X6 M (F86) V8-4.4L (tt) S63

Part #: 50-40045D

Overview

The aFe Power Cold Air Intake System is engineered to enhance the air intake efficiency of your BMW X5 M or X6 M equipped with the 4.4L twin-turbocharged S63 V8 engine. Designed for enthusiasts seeking improved throttle response and optimized airflow, this intake system replaces the factory airbox with a smooth, one-piece sealed housing that minimizes turbulence and maximizes the intake of cooler air. The system is ideal for drivers who want to support their vehicle’s performance potential while maintaining a precise fit and reliable operation.

Featuring a CAD-designed, dyno-tuned roto-molded intake tube, this system is crafted to deliver maximum power gains without compromising fitment or durability. The Momentum ST air filter included is oil-free and constructed with a large 9-inch tall conical flat top design, utilizing a 360-degree radial flow pattern. Its three-layer synthetic media progressively filters air with finer porosity, ensuring high airflow and excellent filtration while offering easy maintenance and long service intervals.

Key Features

This cold air intake system offers the following key features:

• One-piece sealed housing to reduce air turbulence and ensure the coolest air charge possible
• CAD-designed, roto-molded intake tube optimized for maximum airflow and power gains
• Large 9" tall conical flat top air filter with 360-degree radial flow for superior filtration and airflow
• Oil-free synthetic media with three layers of progressively finer porosity for convenience and durability
• Dyno-tuned design to support enhanced engine response and performance
• Precision fitment tailored for the 2015-2019 BMW X5 M and X6 M with the S63 4.4L twin-turbo V8

Construction & Design

The intake system’s roto-molded tube is engineered for strength and smooth airflow, while the sealed housing eliminates the need for multiple-piece assemblies, reducing potential air leaks and heat soak. The oil-free synthetic filter media is designed for easy cleaning and long-lasting performance without the mess of traditional oiled filters. This combination of materials and design ensures a durable, high-quality upgrade that integrates seamlessly with your vehicle’s engine bay.

Installation & Fitment

Installation is designed to be straightforward with direct bolt-on fitment for the specified BMW models. The system replaces the factory air intake components without requiring modifications, making it accessible for enthusiasts and professional installers alike. Fitment should be verified against your vehicle’s specific model and year to ensure compatibility with the part number provided.