Injen PowerFlow Cold Air Intake

Jeep Grand Cherokee 05-09 5.7L Hemi

Part #: PF5012P

Overview

The Injen PowerFlow Cold Air Intake Polished is a high-performance air intake system designed specifically for the 2005 to 2009 Jeep Grand Cherokee equipped with the 4.7L V8 engine. This direct-fit intake enhances your vehicle’s airflow, delivering noticeable gains in horsepower and torque without the need for additional tuning. Ideal for Jeep enthusiasts seeking improved throttle response, increased power output, and a more aggressive engine sound, this intake system combines performance with a sleek polished finish that elevates your engine bay’s appearance.

Crafted by Injen Technology, a trusted leader in automotive intake solutions, the PowerFlow system focuses on delivering cooler, denser air to the engine for better combustion efficiency and enhanced driving excitement. It offers a reliable, maintenance-friendly upgrade that balances power gains with factory air-fuel ratios, making it a perfect choice for drivers who want a straightforward performance enhancement.

Key Features

This intake system incorporates advanced engineering and premium materials to ensure superior performance and durability. Key features include:

• Dyno-proven power gains of up to +12 horsepower and +13 ft-lbs of torque
• MR Technology that maintains proper air-fuel ratios without requiring additional tuning
• 6061-T6 polished aluminum tubing for improved airflow and a polished engine bay look
• SuperNano-Web dry air filter designed for maximum filtration and easy maintenance
• Optimized air filter placement to reduce intake air temperatures by avoiding hot engine bay air
• Smooth, mandrel-bent intake piping to eliminate airflow restrictions and turbulence
• Includes all necessary hardware and detailed instructions for a direct bolt-on installation
• Limited Lifetime Warranty from Injen Technology for long-term peace of mind

Construction & Design

The Injen PowerFlow intake system features precision-crafted 6061-T6 aluminum tubing, known for its strength, lightweight properties, and corrosion resistance. The polished finish not only enhances the visual appeal under the hood but also contributes to smoother airflow dynamics, reducing turbulence for optimal engine breathing.

Injen’s proprietary MR Technology ensures the air-fuel mixture remains balanced, preserving engine reliability and drivability without the need for aftermarket tuning. The SuperNano-Web dry air filter media offers excellent filtration efficiency while allowing high airflow. Its dry design eliminates the need for oiling, simplifying maintenance and reducing the risk of contamination. The intake’s strategic filter placement draws in cooler ambient air, improving combustion performance and overall engine efficiency.

Performance & Sound

With verified gains of up to 12 horsepower and 13 lb-ft of torque, the Injen PowerFlow intake significantly enhances engine responsiveness and power delivery. The smooth, mandrel-bent piping reduces airflow restrictions and turbulence, allowing your 4.7L V8 engine to breathe more freely. Additionally, the system produces a more aggressive and engaging engine tone under full throttle, adding an exciting auditory dimension to your driving experience.

Installation & Fitment

The Injen PowerFlow Cold Air Intake is designed for a direct bolt-on installation on Jeep Grand Cherokee models from 2005 through 2009 with the 4.7L V8 engine. The kit includes all necessary components and detailed instructions, enabling a straightforward installation process that requires only basic hand tools. No modifications or additional tuning are needed, making this upgrade accessible for both professional installers and experienced enthusiasts.

What's Included

• 6061-T6 polished aluminum intake tubing
• SuperNano-Web dry air filter
• All mounting hardware and clamps
• Detailed installation instructions

Ideal For

This intake system is perfect for Jeep Grand Cherokee owners who want to increase horsepower and torque while maintaining factory air-fuel ratios. It suits drivers seeking a reliable, maintenance-friendly upgrade that improves engine sound and performance without the complexity of additional tuning. Enthusiasts who appreciate quality craftsmanship and a polished engine bay appearance will also find this intake an excellent choice.

Emissions Note

This product is not currently CARB exempt and is therefore not legal for sale or use in California or on vehicles registered with the California Department of Motor Vehicles.

Injen is a performance intake and airflow brand best known for dyno-proven cold air intakes and intake systems built for enthusiast street and track builds. Their catalog spans intake kits, filters, and supporting components designed to increase airflow, sharpen throttle response, and add a more aggressive induction note.