AEM Induction C.A.S

Fits 2007–2011 BMW 335i with V6 3.0L Engine

Part #: 21-825DS

Overview

The AEM C.A.S (Cold Air Intake System) is a high-performance upgrade designed specifically for the BMW 335i from 2007 to 2011. This intake system helps your vehicle breathe more efficiently by replacing the restrictive factory air intake housing with a carefully engineered setup that enhances airflow, supporting improved engine response and overall performance. Crafted for enthusiasts seeking increased horsepower and torque, the system combines durability with a sleek, aerodynamic design that complements your vehicle’s engine bay. This intake system is ideal for drivers who want to optimize their BMW’s breathing capability, whether for daily driving, spirited runs, or track days. It features a roto-molded air box that contains an oversized, washable Dryflow synthetic filter, ensuring consistent airflow, excellent filtration, and long-term usability. The system draws air from factory fresh inlets, helping your engine operate more efficiently and respond more quickly to throttle inputs.

Key Features

Designed with performance and durability in mind, the AEM C.A.S offers several key benefits:

• Roto-molded, aerodynamic air box for optimal airflow management
• Oversized, washable Dryflow synthetic filter for high filtration efficiency and easy maintenance
• Engineered to increase horsepower and torque through improved air intake
• Precision-tuned and dyno-tested for reliable performance gains
• Utilizes factory air inlets for seamless installation and compatibility
• Constructed from high-quality materials to withstand engine bay conditions
• Enhances engine response and throttle feel for a more engaging driving experience

Construction & Design

The intake system features a roto-molded air box designed to maximize airflow while protecting the filter from heat and debris. The oversized Dryflow synthetic filter is engineered for high airflow capacity and easy cleaning, ensuring consistent performance over time. The system’s durable construction ensures long-lasting performance and reliable operation under various driving conditions.

Driving Feel & Feedback

Installing the AEM C.A.S results in a noticeable improvement in throttle response and engine sound, giving your BMW a more aggressive and refined character. The increased airflow supports smoother acceleration and a more responsive driving experience, especially during spirited driving or high-demand conditions.

Installation & Fitment

The system is designed for straightforward installation using factory mounting points and inlets. No additional modifications are typically required, making it a practical upgrade for enthusiasts looking to enhance their vehicle’s performance with minimal hassle.

What’s Included

The package includes the roto-molded air box, oversized Dryflow synthetic washable filter, intake duct, and all necessary hardware for a secure and proper fitment.

Ideal For

This intake system is perfect for BMW 335i owners seeking to improve engine airflow, response, and overall driving enjoyment without extensive modifications. It’s suitable for both daily drivers and performance enthusiasts aiming for reliable power gains.