K&N 01-04 Lexus IS300 L6-3.0L Performance Air Intake Kit

If you're looking to get more out of your 2001-2005 Lexus IS300's 3.0L engine, this K&N performance air intake kit is designed to help. It replaces your restrictive factory air box with a system that allows your engine to breathe more freely, which can lead to noticeable gains in horsepower and torque. This kit is built to be a direct replacement for your stock setup, making installation straightforward.

The core of this intake is a high-density polyethylene (HDPE) tube, rotationally molded to help increase the volume of air reaching your engine. It's paired with K&N's well-known High-Flow Air Filter, which uses oiled cotton media. This filter is washable and reusable, and its oversized, conical design means you can typically go up to 100,000 miles between cleanings under normal highway driving conditions. A custom heat shield is included to help keep hot air from the engine bay away from the intake charge, further improving performance.

K&N backs this intake with their Million Mile Limited Warranty, and it's designed not to void your vehicle's factory warranty. Installation is usually completed in under an hour, and the kit comes with everything needed for a typical install.