Performance Cold Air Intake Kit for 1999–2005 BMW E46 323 / 325 / 328 / 330 I6

Unlock the true potential of your BMW E46 3-Series (1999–2005) with this high-performance cold air intake system designed specifically for 2.5L and 3.0L inline-6 engines. The E46 chassis is celebrated for its balance, precision handling, and legendary BMW straight-six performance—and this intake is engineered to enhance exactly that.

By replacing the restrictive factory air box and intake tubing, this system delivers cooler, denser air directly to the engine for improved combustion. The result is a noticeable increase in power, sharper throttle response, and a deeper, sportier intake sound that complements the E46’s performance heritage.

Key Features

• Direct fit for 1999–2005 BMW E46 323 / 325 / 328 / 330 with I6 engines
• Boosts horsepower and torque by up to 10%
• Constructed from T304 lightweight aluminum piping
• High-flow design for exceptional filtration and maximum airflow
• Improves throttle response for a more engaging drive
• Replaces factory air filter and intake tube
• Optimized to work with the stock intake manifold
• Produces a deep, aggressive, sporty engine sound
• Washable filter requires cleaning only every 50,000 miles under normal driving
• Easy bolt-on installation (under 60 minutes)
• Will not void your vehicle warranty

Why Upgrade Your Factory Air Box?

• Increase horsepower and torque
• Improve acceleration and throttle response
• Enhance fuel efficiency
• Enjoy a deeper, throatier intake sound
• Add a clean, sporty look to your engine bay
• Reduce long-term costs with a reusable air filter

Performance Design

The unique intake design optimizes airflow while the included heat shield helps isolate the filter from engine bay heat. This allows cooler outside air to enter the engine, resulting in more efficient combustion and consistent power delivery. The system is ideal for daily driving, spirited canyon runs, or weekend track use.

This intake also pairs exceptionally well with a performance chip or ECU tune. When combined, the engine can take full advantage of the increased airflow, delivering even better acceleration, throttle response, an