Cold Air Intake Kit for Mazda 3 (2004-2009) with 2.0L / 2.3L 4-Cylinder Engine Black

Optimize Your MZR Airflow: Cold Air Intake for 2004-2009 Mazda 3

Who It’s For: Designed specifically for first-generation (BK) Mazda 3 owners running the 2.0L or 2.3L MZR engine family. If you’re looking to wake up your daily driver or improve throttle response for spirited backroad sessions, this is the foundational modification you need.

The Problem: The stock Mazda MZR intake system is plagued by restrictive plastic resonators and an airbox designed more for silence than performance. This factory setup traps heat and forces the engine to pull air through a narrow, convoluted path, which creates a bottleneck for the 2.0L and 2.3L powerplants.

The Solution: This system replaces the entire factory restriction with a high-flow mandrel-bent T-304 aluminum pipe and a washable performance filter. By relocating the intake point, we ensure the MZR engine pulls in denser, oxygen-rich air, correcting the factory design flaws and allowing the engine to breathe at its full potential.

Why This is the Ultimate Upgrade

• Consistent Power Gains: Expect a verified increase of 5-7% in horsepower and 6-8% in torque by reducing pumping losses and improving volumetric efficiency.
• T-304 Aluminum Construction: The intake pipe features a polished anodized finish for superior heat rejection and wear resistance compared to cheap plastic or thin-walled alternatives.
• Maintenance-Free Filtration: Includes a high-efficiency washable and reusable filter that provides up to 95% filtration efficiency while significantly increasing surface area for airflow.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2004 Mazda 3 2.0L / 2.3L 4-Cylinder (Non-Turbo)
• 2005 Mazda 3 2.0L / 2.3L 4-Cylinder (Non-Turbo)
• 2006 Mazda 3 2.0L / 2.3L 4-Cylinder (Non-Turbo)
• 2007 Mazda 3 2.0L / 2.3L 4-Cylinder (Non-Turbo)
• 2008 Mazda 3 2.0L / 2.3L 4-Cylinder (Non-Turbo)
• 2009 Mazda 3 2.0L / 2.3L 4-Cylinder (Non-Turbo)

Interchange Part Numbers:

CAI-MZ3-0409-BK, 2.0L MZR, 2.3L MZR, BK-Chassis-Intake, 2004, 2005, 2006, 2007, 2008, 2009

The Performance Promise

Note: This kit is specifically for the naturally aspirated i and s models. It will not fit the Mazdaspeed 3 (Turbo) model. For the best results, we recommend disconnecting the battery for 10 minutes after installation to allow the ECU to calibrate for the increased airflow. Buy with confidence. Backed by real automotive experts and fast shipping.