Performance Air Intake for BMW Z3 318i 318is 318ti (1996-1999) 1.9L Engine

Optimize Airflow for your BMW 1.9L M44 Powered Z3 and 318 Series

Who It’s For: Designed specifically for BMW 3-Series and Z3 owners running the 1.9L M44 engine family. If you’re looking to sharpen throttle response and hear that classic BMW four-cylinder induction note, this is the proper hardware for your chassis.

The Problem: The M44 engine is a high-revving, dual-overhead-cam unit, but it’s often choked by a factory air box designed more for sound suppression than performance. The stock plastic housing and restrictive paper filters create turbulence and heat soak, which holds back the engine’s natural power curve.

The Solution: This intake system replaces the entire factory air box and accordion tube with mandrel-bent T304 aluminum piping. By streamlining the path to the throttle body, we’ve corrected the airflow bottlenecks of the M44, allowing for a cooler, denser oxygen charge and a noticeable improvement in mid-range torque.

Why This is the Ultimate Upgrade

• Enhanced Induction Path: High-quality T304 aluminum piping reduces air turbulence compared to the ribbed factory rubber boots.
• Serviceable Filtration: Features a high-flow, washable synthetic filter that provides superior micron-level protection while increasing surface area for air intake.
• Straightforward Bolt-On: Engineered to utilize factory mounting points, making this a true 60-minute driveway project with standard hand tools.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 1996-1998 BMW 318i (E36) 1.9L L4
• 1996-1997 BMW 318is (E36) 1.9L L4
• 1996-1999 BMW 318ti (E36) 1.9L L4
• 1996-1998 BMW Z3 (E36/7) 1.9L L4

Interchange Part Numbers:

AF-BMW-02-BK, 13711433010, 13711743160, 13711739574

The Performance Promise

Buy with confidence. As specialists in the E36 and Z3 platforms, we know the M44 engine inside and out. This kit is designed to provide a "sporty" engine note and improved efficiency without triggering a Check Engine Light. We recommend disconnecting your battery during the install to allow the DME to re-calibrate for the increased airflow.