aFe Black Series Stage-2 Carbon Fiber Cold Air Intake System

2008–2013 BMW M3 (E9X) V8 4.0L

Part #: 51-31662-C

Overview

The aFe Black Series Stage-2 Carbon Fiber Cold Air Intake System is designed to enhance the performance and sound of your BMW M3 (E9X) with a powerful 4.0L V8 engine. Crafted for enthusiasts who demand both style and function, this intake system offers a significant upgrade over the factory setup, helping you unlock more horsepower, torque, and throttle response. Its sleek carbon fiber construction not only reduces weight but also adds a sporty aesthetic to your engine bay.

Whether you're a daily driver seeking improved efficiency or a spirited driver looking for maximum performance gains, this intake system is engineered to deliver. With a focus on durability, airflow, and noise reduction, it provides a balanced blend of performance and refinement, making it an ideal choice for BMW enthusiasts who want to elevate their driving experience.

Key Features

The aFe Black Series Stage-2 Carbon Fiber Cold Air Intake System incorporates advanced materials and innovative design features to optimize airflow and engine response. Here are some of its standout features:

• Constructed from lightweight, high-quality carbon fiber to reduce overall vehicle weight and improve heat resistance, helping to maintain cooler intake air temperatures.
• Precision-molded plastic intake tube designed for maximum airflow volume and velocity, ensuring your engine breathes more freely.
• 360-degree flow technology in the intake tube enhances airflow efficiency, supporting increased horsepower and torque output.
• Powder-coated steel or brushed aluminum heat shield effectively blocks engine bay heat, directing cold, dense air into the filter for improved combustion.
• Quieting intake noise while maintaining a sporty sound profile, providing a refined driving experience.
• High-flow, washable, and reusable Pro DRY S filters with a limited lifetime warranty, offering maintenance convenience and sustained performance.
• Outperforms the factory intake system in airflow capacity, helping support increased power and responsiveness.

Filter Options

The included Pro DRY S filter is an oil-free, high-performance filter designed for durability and ease of maintenance. Its multi-layer synthetic media provides excellent filtration efficiency while allowing high airflow, making it suitable for daily driving and spirited performance applications. The washable design means you can clean and reuse the filter multiple times, ensuring consistent performance over the long term.

Construction & Design

The intake system features a one-piece, 16-gauge powder-coated heat shield that requires no cutting or drilling for installation, simplifying the upgrade process. The shield's stylish finish not only enhances the engine bay appearance but also effectively isolates the intake from engine heat, maintaining cooler air intake temperatures. The molded plastic intake tube is engineered with precision to maximize airflow and reduce turbulence, contributing to improved throttle response and power delivery. The use of high-quality materials and TIG-welded construction ensures durability and a perfect fit, even under demanding driving conditions.

Performance & Sound

By replacing the restrictive factory intake with this high-flow system, you'll notice improved throttle response, increased horsepower and torque, and a more aggressive intake sound. The system is designed to optimize airflow, helping your engine produce more power while maintaining a refined and sporty tone. Although specific performance numbers vary depending on vehicle condition and modifications, this intake system is a proven upgrade for enhancing your BMW M3's overall performance.

Installation & Fitment

The aFe Black Series Stage-2 Carbon Fiber Cold Air Intake System is a bolt-on upgrade that requires no cutting, drilling, or tuning. Its direct-fit design utilizes factory mounting points and OEM air inlet connections, making installation straightforward for DIY enthusiasts and professional installers alike. The process typically involves removing the factory intake and replacing it with the new system, with all necessary hardware included. No additional modifications are necessary to achieve a secure and performance-enhancing fitment.

What's Included

• Carbon fiber heat shield
• Precision-molded plastic intake tube
• High-flow Pro DRY S washable filter
• All necessary clamps, couplers, and hardware
• Installation instructions

Ideal For

• BMW M3 (E9X) owners seeking increased horsepower and torque
• Performance enthusiasts wanting a stylish and lightweight intake upgrade
• Drivers aiming for improved throttle response and engine sound
• Those who prefer a maintenance-friendly, washable filter system

Emissions Note

This product is designed to improve airflow and engine performance. Please verify local regulations regarding emissions compliance before installation. The aFe Black Series Carbon Fiber Cold Air Intake System is intended for off-road or racing use only and may not be legal for street use in all areas.