K&N 02-04 Chevy Trailblazer L6-4.2L Performance Intake Kit

This is the K&N 57-3036 performance intake system, designed to fit a range of vehicles including the Chevrolet Trailblazer, GMC Envoy, and Oldsmobile Bravada with the 4.2L inline-6 engine from 2002-2005. This kit replaces your factory airbox and intake tubing to help your engine breathe more freely, which can lead to a noticeable improvement in power and responsiveness.

The system features a rotationally-molded high-density polyethylene (HDPE) tube that's shaped to increase the volume of air entering your engine. It comes with K&N's washable and reusable High-Flow Air Filter, which uses oiled cotton media. The oversized, conical shape of the filter is designed to go up to 100,000 miles between cleanings under normal highway driving. A custom heat shield is included to block hot air from the engine bay, ensuring cooler air enters the intake. K&N backs this kit with their Million Mile Limited Warranty.

Installation is typically straightforward and can often be completed in under an hour, usually without needing any special tools beyond basic hand tools. This kit is designed to be a direct replacement for your stock intake components.