K&N 57 Series Cold Air Intake

2006–2010 Jeep Grand Cherokee SRT8 6.1L HEMI

Part #: 57-1555

Overview

The K&N 57 Series Cold Air Intake is a high-performance upgrade designed specifically for the 2006 to 2010 Jeep Grand Cherokee SRT8 equipped with the 6.1L HEMI engine. This intake system replaces the factory air intake components with a more efficient design that allows your engine to breathe better, resulting in improved horsepower, torque, and throttle response. Ideal for enthusiasts seeking enhanced acceleration and overall engine performance without compromising reliability or vehicle warranty.

By optimizing airflow and filtration, the 57 Series intake delivers a noticeable boost in power while maintaining excellent filtration to protect your engine. Its user-friendly design ensures a straightforward installation process, making it accessible for DIY mechanics and professionals alike.

Key Features

The K&N 57 Series Cold Air Intake combines advanced engineering and quality materials to maximize airflow and engine efficiency. Key features include:

• Guaranteed horsepower gain of approximately 12 HP at 5000 RPM
• Torque increase of about 12.6 lb-ft for improved acceleration
• Roto-molded high-density polyethylene (HDPE) intake tube for smooth airflow and durability
• Oversized, washable, and reusable oiled cotton High-Flow Air Filter™ for superior filtration and airflow
• Custom heat shield to protect intake air from engine heat, ensuring consistent performance
• Black finish on the intake tube for a sleek, factory-inspired appearance
• Includes stainless steel clamps, couplers, and mounting hardware for secure installation
• Filter service interval up to 100,000 miles under normal driving conditions
• Street legal in all 50 states
• Backed by K&N’s No-Hassle Lifetime Limited Warranty

Construction & Design

The intake tube is crafted from roto-molded HDPE, a high-quality plastic known for its strength, heat resistance, and smooth internal surface that promotes laminar airflow. This construction reduces turbulence and maximizes the volume of air delivered to the engine. The oversized High-Flow Air Filter™ uses multiple layers of oiled cotton gauze to trap contaminants effectively while allowing significantly more airflow than stock filters.

The custom heat shield is engineered to isolate the intake from engine bay heat, ensuring cooler, denser air reaches the combustion chamber. This design helps maintain consistent performance even during extended driving or spirited acceleration.

Performance & Sound

Installing the K&N 57 Series Cold Air Intake results in a measurable increase in horsepower and torque, enhancing throttle response and overall engine efficiency. The system’s design also produces a more aggressive induction sound, providing an engaging driving experience without excessive noise. This balance of performance and sound makes it an excellent upgrade for Jeep Grand Cherokee SRT8 owners looking to improve their vehicle’s dynamic character.

Installation & Fitment

The K&N 57 Series Cold Air Intake is designed as a direct replacement for the factory air filter and intake tube, requiring no modifications to your Jeep Grand Cherokee SRT8. Installation typically takes less than 60 minutes using basic hand tools and existing factory mounting points. The kit includes all necessary hardware, clamps, and couplers for a secure fit. This straightforward installation process allows enthusiasts to upgrade their vehicle quickly and confidently.

What’s Included

• Roto-molded HDPE intake tube with black finish
• Oversized washable oiled cotton High-Flow Air Filter™
• Custom heat shield
• Stainless steel clamps and couplers
• Mounting hardware
• Installation instructions

Ideal For

This cold air intake system is ideal for Jeep Grand Cherokee SRT8 owners who want to enhance engine performance, improve throttle response, and enjoy a more aggressive induction sound without sacrificing reliability or vehicle warranty. It suits daily drivers, weekend enthusiasts, and those who occasionally take their vehicle to the track or off-road while maintaining street legality.

Emissions Note

The K&N 57 Series Cold Air Intake is street legal in all 50 states and will not void your vehicle’s factory warranty. It complies with emissions regulations, making it a responsible upgrade for performance-minded drivers.

K&N is one of the most recognized names in performance filtration, offering reusable high-flow air filters, cold air intakes, and related filters for street and motorsports use. Their products are designed to improve airflow and serviceability—ideal for enthusiasts who want performance-oriented filtration and easy maintenance.