Injen Polished PowerFlow Cold Air Intake System

2011–2021 Jeep Grand Cherokee / 2011–2023 Dodge Durango 5.7L VVT HEMI

Part #: PF5021P

Overview

The Injen Polished PowerFlow Cold Air Intake System is a precision-engineered upgrade designed specifically for the 5.7L VVT HEMI engines found in Jeep Grand Cherokee (2011–2021) and Dodge Durango (2011–2023) models. This intake system optimizes airflow and reduces intake air temperatures to deliver cooler, denser air directly to your engine, resulting in improved combustion efficiency and enhanced performance.

Ideal for enthusiasts who want to increase horsepower and torque without sacrificing engine reliability or drivability, the PowerFlow system provides a direct-fit, bolt-on solution that requires no additional tuning. It enhances throttle response and produces a more aggressive engine tone under full throttle, making it a perfect upgrade for daily drivers and weekend warriors alike.

Key Features

Combining advanced engineering with durable materials, the Injen PowerFlow Cold Air Intake System offers measurable performance improvements and long-lasting reliability:

• Strategically positioned air filter to minimize heat soak and draw in cooler ambient air
• SuperNano-Web dry air filter for superior filtration and unrestricted airflow
• Polished 6061-T6 aluminum intake tubing for enhanced strength and heat resistance
• Smooth mandrel-bent piping to reduce airflow restrictions and turbulence
• Dyno-proven gains of up to +11 horsepower and +15 ft-lbs of torque
• Maintains factory air/fuel ratios with no additional tuning required
• Direct-fit kit includes all necessary hardware and detailed installation instructions
• Produces an aggressive engine tone under full throttle for an engaging driving experience
• Manufactured in Pomona, California, USA with a limited lifetime warranty

Construction & Design

The intake system features precision-crafted 6061-T6 aluminum tubing polished to a mirror-like finish, providing both durability and an attractive under-hood appearance. Its smooth, mandrel-bent design minimizes turbulence and airflow restrictions, allowing your engine to breathe more efficiently and perform at its best.

The SuperNano-Web dry air filter is fully serviceable and engineered to trap contaminants while maximizing airflow, ensuring long-lasting protection and consistent performance. Injen’s strategic placement of the air filter away from engine heat sources helps reduce intake air temperatures, feeding your engine with cooler, denser air for improved combustion efficiency and power output.

Performance & Sound

This intake system delivers a noticeable increase in horsepower and torque, with dyno-proven gains of up to 11 horsepower and 15 ft-lbs of torque. The enhanced airflow improves throttle response and engine efficiency without requiring any additional tuning. Additionally, the intake produces a more aggressive engine tone under full throttle, providing an engaging and sporty driving experience without excessive noise.

Installation & Fitment

The Injen PowerFlow Cold Air Intake System is designed for a direct bolt-on installation with no modifications required. The kit includes all necessary components and detailed instructions, allowing for a straightforward upgrade that can typically be completed with basic hand tools. It fits a wide range of Dodge Durango models from 2011 through 2023 and Jeep Grand Cherokee models from 2011 through 2021, ensuring compatibility with multiple trims and engine configurations.

What's Included

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

Ideal For

This intake system is perfect for Dodge Durango and Jeep Grand Cherokee owners who want to enhance engine performance, improve throttle response, and enjoy a more aggressive engine sound without complicated tuning or modifications. It suits daily drivers, weekend enthusiasts, and those looking to maximize their vehicle’s potential with a reliable, high-quality cold air intake solution.

Emissions Note

This product carries CARB Executive Order #D-476-10, which applies to 2011–2019 model years only. Please verify local regulations before installation to ensure compliance with emissions standards in your area.

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.