K&N BMW E90/91/93 335I N54 Engine Performance Air Intake System

The K&N Engineering BMW E90/91/93 335i N54 Engine Performance Air Intake System is a high-performance upgrade designed to enhance airflow and engine efficiency. This intake system features a fully enclosed, injection-molded air box that replaces the factory air filter and air box, significantly reducing airflow restrictions. By smoothing and straightening the incoming air, it allows the engine to breathe more freely, resulting in increased power and improved acceleration across the RPM range. The removable lid provides convenient access for filter cleaning and maintenance, ensuring consistent performance. Constructed with durable materials, this intake system is engineered to deliver reliable, long-lasting performance while optimizing airflow dynamics for enhanced engine response.

Designed for 2007–2013 BMW 3 Series models equipped with the N54 engine, this intake system is a direct replacement for the stock air intake components. It is ideal for street and performance driving, offering a noticeable boost in horsepower and throttle response. The installation is straightforward, utilizing existing mounting points and factory connections for a bolt-on upgrade. The kit includes the fully enclosed air box, intake hose, and filter, providing all necessary components for a seamless upgrade. Suitable for enthusiasts seeking improved airflow and engine performance, this system enhances the vehicle’s overall driving experience without requiring additional modifications.