aFe Magnum FLOW Pro DRY S Air Filter

2007–2011 Jeep Wrangler JK 3.8L

Part #: 31-80155

Overview

The aFe Magnum FLOW Pro DRY S Air Filter is a premium oil-free replacement designed specifically for the Jeep Wrangler JK models equipped with the 3.8L engine from 2007 to 2011. Engineered to deliver superior filtration performance while maintaining excellent airflow, this air filter is ideal for Jeep enthusiasts seeking a reliable, reusable solution that enhances engine protection and longevity. Its washable and reusable design ensures years of hassle-free service, making it a cost-effective upgrade over disposable paper filters.

Built to meet or exceed OEM specifications, the Magnum FLOW Pro DRY S filter provides a perfect fit and seal, ensuring your Wrangler’s engine breathes clean air under all driving conditions. Whether you’re tackling off-road trails or cruising on the highway, this air filter helps maintain optimal engine performance and efficiency.

Key Features

Designed with advanced filtration technology and durable materials, the Magnum FLOW Pro DRY S offers the following key benefits:

• 100% polyurethane top and bottom for a robust, oil-free construction
• Three layers of progressively finer synthetic mesh media for superior dust and contaminant capture
• Washable and reusable design supports multiple cleaning cycles, reducing replacement costs
• Tall, open pleats evenly spaced to maximize dust holding capacity and airflow
• Integrated urethane bump seal ensures a tight, leak-proof fit throughout the filter’s lifespan
• OE replacement filter engineered for direct fitment with no modifications required
• Environmentally friendly with no need for oiling, simplifying maintenance

Construction & Design

The Magnum FLOW Pro DRY S air filter features a rugged construction with 100% polyurethane end caps that resist cracking, warping, and degradation over time. The synthetic media is composed of three layers of progressively finer mesh, engineered to trap contaminants effectively while maintaining unrestricted airflow. This design not only protects your engine from harmful particles but also supports optimal combustion efficiency.

The tall pleat design increases the surface area, allowing the filter to hold more dust and debris before requiring cleaning. The integrated urethane bump seal guarantees a secure, leak-free installation, preventing unfiltered air from bypassing the filter element. This attention to detail in materials and engineering ensures long-lasting durability and consistent performance.

Installation & Fitment

Installation of the aFe Magnum FLOW Pro DRY S air filter is straightforward and requires no special tools or modifications. It is a direct OE replacement designed specifically for the 2007–2011 Jeep Wrangler JK 3.8L engine, ensuring a perfect fit and seamless integration with your vehicle’s factory air intake system. Simply remove the old filter and install the Magnum FLOW Pro DRY S in its place to enjoy enhanced filtration and airflow immediately.

What's Included

• One aFe Magnum FLOW Pro DRY S Air Filter (Part #31-80155)
• Installation instructions

Ideal For

This air filter is ideal for Jeep Wrangler JK owners who demand reliable engine protection and improved air filtration without the hassle of oiling or frequent replacements. It suits daily drivers, off-road enthusiasts, and anyone looking to maintain their vehicle’s performance and longevity with a high-quality, reusable air filter solution.

aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.