aFe Magnum Flow Inverted Air Filter

2003–2010 Dodge Ram 2500 / Ram 3500 5.9L Diesel / 6.7L Diesel

Part #: 31-80102

Overview

The aFe Magnum Flow Inverted Air Filter is a high-performance replacement designed specifically for Dodge Ram 2500 and Ram 3500 trucks equipped with 5.9L and 6.7L diesel engines from 2003 to 2010. Engineered as a direct OE replacement, this filter enhances engine efficiency by improving airflow and filtration without requiring oiling. Its washable and reusable design makes it a cost-effective upgrade for truck owners seeking reliable performance and long service intervals.

Ideal for both daily drivers and heavy-duty work trucks, the Magnum Flow air filter delivers improved horsepower and torque while maintaining engine protection. The advanced Pro DRY S media ensures superior dust holding capacity, making it a durable and maintenance-friendly choice for diesel-powered Dodge Ram trucks.

Key Features

Built to outperform standard paper filters, the aFe Magnum Flow Inverted Air Filter offers numerous benefits that enhance engine performance and longevity:

• Up to 14% increased airflow compared to stock paper filters, boosting horsepower and torque
• Durable 100% polyurethane frame resists cracking and warping for extended filter life
• Pro DRY S media with three layers of progressively finer cotton gauze mesh for optimal filtration and airflow
• Washable and reusable design supports multiple cleaning cycles, reducing replacement costs
• Integrated urethane bump seal ensures a secure, leak-free fit throughout the filter’s lifespan
• Tall, open, evenly spaced pleats provide excellent dust holding capacity for longer service intervals
• Oil-free design eliminates mess and simplifies maintenance

Construction & Design

The Magnum Flow air filter features a rugged 100% polyurethane frame that withstands harsh engine bay conditions without cracking or deforming. Its inverted design maximizes the filter surface area, allowing for improved engine breathing and efficiency. The Pro DRY S media consists of three layers of cotton gauze mesh, each layer progressively finer to trap contaminants effectively while maintaining unrestricted airflow.

The precision-molded urethane bump seal creates an airtight barrier, preventing unfiltered air from bypassing the filter element. The pleated media design increases dust capacity, extending the time between cleanings and ensuring consistent engine protection.

Performance & Sound

By increasing airflow by up to 14% over stock paper filters, the aFe Magnum Flow air filter enhances engine responsiveness, horsepower, and torque. This improved breathing supports more efficient combustion, which can lead to smoother throttle response and potential fuel economy benefits. The oil-free design guarantees consistent filtration performance without the risk of over-oiling or filter damage, maintaining engine health and reliability.

Installation & Fitment

Installation is straightforward and requires no modifications. This air filter is designed as a direct replacement for the factory air filter in 2003–2010 Dodge Ram 2500 and Ram 3500 trucks with 5.9L or 6.7L diesel engines. Simply remove the original filter and install the Magnum Flow filter in the airbox, ensuring the urethane bump seal seats properly for a leak-free fit. Routine maintenance involves washing and reusing the filter media, making upkeep simple and cost-effective.

What's Included

• aFe Magnum Flow Inverted Replacement Air Filter with Pro DRY S media
• Installation instructions

Ideal For

This air filter is perfect for Dodge Ram 2500 and Ram 3500 owners who want a durable, high-performance replacement that improves airflow and engine efficiency without the hassle of oiling. It suits daily drivers, work trucks, and enthusiasts aiming to maintain or enhance their truck’s power and reliability with a washable, reusable 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.