Cold Air Intake for Mitsubishi Galant (1999-2003) 2.4L 4-cyl (4G64) / 3.0L V6 (6G72) Engines

Improve Airflow and Throttle Response for Mitsubishi Galant & Eclipse Sirius and Cyclone Engines

Who It’s For: Designed specifically for Mitsubishi Galant and Eclipse owners running the Sirius 4G64 or Cyclone 6G72 engines who want to move past the limitations of factory-silenced air induction.

The Problem: The factory air box in the 4G64 and 6G72 setups was engineered for silence over performance. Between the restrictive plastic resonators and the corrugated rubber piping, the air enters the intake manifold with significant turbulence. For the Sirius 4G64, this often results in a "lazy" mid-range, while the Cyclone 6G72 V6 feels choked out as it tries to breathe through the narrow stock apertures at higher RPMs.

The Solution: We engineered this cold air intake system to correct the factory design flaws, delivering reliable performance by replacing the entire restrictive assembly with T304 lightweight aluminum. This allows the Cyclone engine to pull air through a high-velocity path, reducing pumping losses and giving you the crisp throttle response and deep, throaty intake growl that these Mitsubishi powerplants are known for.

Why This is the Ultimate Upgrade

• Optimized Velocity: The T304 aluminum mandrel-bent piping reduces air turbulence, resulting in gains of up to 10% in horsepower and torque depending on your current tuning.
• Advanced Thermal Management: Unlike stock plastic that can retain heat, the lightweight aluminum piping helps dissipate heat quickly, ensuring a cooler air charge enters the engine.
• Serviceable High-Flow Filter: Includes a washable, reusable synthetic filter that provides exceptional filtration while allowing significantly more CFM than the stock paper element.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2000-2005 Mitsubishi Eclipse 2.4L 4-cyl (4G64)
• 2000-2005 Mitsubishi Eclipse 3.0L V6 (6G72)
• 1999-2003 Mitsubishi Galant 2.4L 4-cyl (4G64)
• 1999-2003 Mitsubishi Galant 3.0L V6 (6G72)

Interchange & Identification:

4G64-S4, 6G72-V6, T304-MIT-GA-01, 1999, 2000, 2001, 2002, 2003, 2004, 2005

The Performance Promise

Real-World Testing: As a specialist who has spent years under the hoods of Eclipses and Galants, I recommend resetting your battery terminal for 30 seconds after installation. This allows the ECU to recalibrate the fuel trims for the increased air volume provided to the Sirius or Cyclone engine. Expect a straightforward 60-minute installation with basic hand tools.

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