Cold Air Intake for BMW E46 323/325/328/330 (1998-2005) I6 Engine Black Red

Performance Cold Air Intake System for BMW E46 3-Series – High-Flow Aluminum & Sport Sound

The E46 generation brought the 3-Series into the modern era with refined inline-six engines that balanced power and efficiency. But BMW's factory air box? It's designed for quiet operation and emissions compliance—not maximum performance. This cold air intake system replaces that restrictive setup with a free-flowing T304 aluminum path that lets your engine breathe the way it was meant to.

The result is noticeable: sharper throttle response when you need to merge or pass, measurable power gains across the rev range, and that distinctive intake growl under acceleration that reminds you there's a straight-six under the hood. The high-flow red filter maximizes airflow volume while maintaining excellent filtration, and because it's washable and reusable, you'll never buy another air filter for this car.

Key Features

• Performance Gains: Increases horsepower and torque by up to 10% for improved acceleration
• T304 Aluminum Construction: Lightweight, corrosion-resistant material built to last
• High-Flow Red Filter: Maximum airflow with superior particle filtration
• Sharper Throttle Response: More immediate engine reaction when you press the pedal
• Direct Bolt-On Fitment: Replaces factory air box without permanent modifications
• Enhanced Engine Sound: Deep, aggressive intake note under load
• Low Maintenance: Washable filter needs cleaning only every 5,000 miles under normal driving

Confirmed Fitment

1998-2005 BMW E46 3-Series (All Inline-6 Models):

• BMW 323i / 323ci
• BMW 325i / 325ci / 325xi
• BMW 328i / 328ci
• BMW 330i / 330ci / 330xi
• Compatible with both automatic and manual transmissions

Installation & ECU Reset

Before installation, disconnect the negative battery terminal and leave it disconnected for at least 60 seconds after completing the install. This allows the ECU to reset and adapt to the increased airflow, optimizing performance gains and preventing potential check engine light errors. Always work on a completely cool engine. While the installation is straightforward bolt-on, professional installation ensures proper sensor alignment and airtight seals.

Product Specifications

• Tube Material: T304 lightweight aluminum
• Filter Color: Red
• System Finish: Performance black
• Filter Type: Washable/reusable high-flow design

Package Includes

• T304 aluminum intake tube
• High-flow performance air filter
• Heavy-duty silicone couplers and stainless clamps
• All necessary mounting hardware

Maintenance Note: Regularly inspect and clean the reusable filter to maintain peak airflow performance. Most drivers clean every 5,000 miles, though dusty environments may require more frequent service.