Performance Cold Air Intake System for 2002–2005 Trailblazer, Envoy, & Bravada – 4.2L L6

Ensure your Trailblazer, Envoy, or Bravada's maximized airflow and engine performance boost with this precision-engineered cold air intake system. Engineered specifically for the 4.2L inline-six engine, this kit replaces the restrictive factory air box that often limits the potential of your SUV during highway merging or heavy hauling. Whether you are maintaining factory settings or looking to maximize your vehicle's potential, this upgrade provides the high-velocity induction path needed for peak efficiency and a more capable driving experience.

The factory intake components are designed for silence over speed, often creating bottlenecks that restrict the engine's ability to breathe. By drawing in a larger volume of cooler, oxygen-rich air, this system eliminates those vulnerabilities, providing a smooth air path that remains stable under heavy load. This ensures that response remains sharp across the entire RPM range, resulting in more immediate acceleration and a boost in horsepower and torque by up to 10%.

Key Features & Performance Benefits

• High-Flow Induction: Constructed with T304 lightweight aluminum piping designed to reduce air turbulence and maximize flow to the engine.

• Significant Power Gains: Engineered to boost both horsepower and torque by up to 10% for a more responsive and powerful driving feel.

• Instant Throttle Feedback: Eliminates the intake lag found in the stock baffled system, allowing the 4.2L engine to react more quickly to driver input.

• Sportier Sound Profile: Enhances the vehicle's character with a deeper, more aggressive induction note during acceleration.

• Thermal Management: Built with high-grade aluminum to help dissipate heat and provide a cooler, denser air charge for better combustion.

• Transmission Compatibility: Precision engineered to fit both Automatic and Manual transmission models for a seamless bolt-on experience.

Vehicle Fitment

Chevrolet Trailblazer

2002–2005 models with 4.2L L6 engine

GMC Envoy

2002–2005 models with 4.2L L6 engine

Oldsmobile Bravada

2002–2004 models with 4.2L L6 engine

Product Specifications

• Engine Application: 4.2L Inline-6 (L6)

• Pipe Material: T304 Lightweight Aluminum

• Performance Gain: Up to 10% Horsepower and Torque

• Transmission: Fits both Automatic and Manual

• Installation: Straightforward bolt-on design using basic hand tools

What's Included

Your kit features the T304 aluminum induction piping, a high-flow performance air filter, and all required couplers, clamps, and hardware for a complete and secure installation.

Installation Tip

Disconnect the NEGATIVE GROUND CABLE from the battery before starting the installation and keep it off for at least one minute after you finish. This reset allows the engine's computer to learn the new airflow parameters. Ensure the engine is completely cool before beginning work.