Cold Air Intake for Lexus IS300 (2001-2005) 3.0L Inline-6 Engine

Improve Throttle Response & Induction Sound for Your Lexus IS300 2JZ-GE

Who It’s For: Designed specifically for 2001–2005 Lexus IS300 owners running the legendary 2JZ-GE engine family. Whether you are daily driving an automatic sedan, a rare SportCross wagon, or rowing gears in a manual sedan, this is the first step in making the inline-six breathe correctly.

The Problem: The 2JZ-GE is a masterpiece of engineering, but the factory air box is a massive, multi-chambered plastic unit designed for maximum silence, not maximum flow. This restrictive setup creates a bottleneck, especially as the VVT-i (Variable Valve Timing) tries to optimize performance at higher RPMs. Furthermore, after two decades, the factory rubber accordion hoses are prone to cracking and vacuum leaks.

The Solution: We engineered this intake to replace the baffled factory unit with a mandrel-bent aluminum pipe. This smooths out the intake path and allows the 2JZ-GE to draw in a higher volume of oxygen-rich air, resulting in a noticeable improvement in mid-range torque and a crisp, metallic induction note that every straight-six enthusiast craves.

Why This is the Ultimate Upgrade

• Enhanced Airflow: By eliminating the factory baffles and restrictive paper filter, this system supports up to 10% gains in horsepower and torque under optimal driving conditions.
• Built for Longevity: Constructed from lightweight aluminum, this piping resists the high under-hood temperatures that typically cause factory plastic components to degrade and brittle over time.
• Maintenance-Free Filtration: Features a washable and reusable high-flow air filter, saving you money on disposable filters for the life of the vehicle.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2001 Lexus IS300 Base Sedan 3.0L L6
• 2002 Lexus IS300 Base Sedan 3.0L L6
• 2002 Lexus IS300 SportCross Wagon 3.0L L6
• 2003 Lexus IS300 Base Sedan 3.0L L6
• 2003 Lexus IS300 SportCross Wagon 3.0L L6
• 2004 Lexus IS300 Base Sedan 3.0L L6
• 2004 Lexus IS300 SportCross Wagon 3.0L L6
• 2005 Lexus IS300 Base Sedan 3.0L L6
• 2005 Lexus IS300 SportCross Wagon 3.0L L6

Interchange Part Numbers:

2001, 2002, 2003, 2004, 2005, 3.0L, 2JZ-GE, IS300-INTAKE-ALUM

The Performance Promise

Buy with confidence. As specialists in the XE10 chassis, we know that fitment is everything. This kit is designed for a direct bolt-on experience using standard hand tools in under 60 minutes. We recommend disconnecting the battery for 10 minutes after installation to allow the ECU to reset its long-term fuel trims and adapt to the increased airflow.

Common Questions

Will this cold air intake fit both the Lexus IS300 Sedan and SportCross wagon?
Yes, this intake system is a direct bolt-on fit for all 2001–2005 Lexus IS300 Base Sedans and 2002–2005 IS300 SportCross wagons equipped with the 3.0L 2JZ-GE inline-6 engine.

Does this intake work with both automatic and manual transmissions?
Yes, it fits all 2001–2005 Lexus IS300 3.0L models regardless of whether your vehicle has the automatic or manual transmission.

What materials are used in this intake kit?
The system features a lightweight, mandrel-bent aluminum intake pipe paired with a washable and reusable high-flow air filter.

What kind of performance gains can I expect?
By replacing the restrictive multi-chambered factory plastic airbox and paper filter with a smooth mandrel-bent pipe, this system supports up to 10% gains in horsepower and torque under optimal driving conditions, along with improved throttle response and a deeper induction sound.

How long does installation take and are special tools required?
Installation takes under 60 minutes using standard hand tools. Disconnecting the battery for 10 minutes after installation is recommended so the ECU can reset its fuel trims and adapt to the increased airflow.