aFe Power 21-91051 Magnum FLOW Air Filter - Pro Dry S

The aFe Power Magnum FLOW Pro DRY S Air Filter is designed to deliver maximum airflow and dependable engine protection without the maintenance hassle of traditional oiled filters. Featuring advanced Pro DRY S synthetic media, this high-performance air filter captures dust, dirt, and debris while allowing clean air to flow efficiently into your engine. Its oil-free design means no messy re-oiling is required, making it a convenient upgrade for daily drivers and performance enthusiasts alike who want improved airflow and consistent filtration. Built for durability and long service life, the Pro DRY S utilizes a washable and reusable construction that helps reduce replacement costs over time. The precision-engineered frame ensures a secure, leak-free fit within factory air boxes, providing easy installation and reliable sealing. Whether you're aiming to maintain engine efficiency or enhance overall performance, this aFe Power air filter provides a balance of filtration, airflow, and long-term value.

The Magnum FLOW Pro 5R Air Filter is washable and reusable, offering a cost-effective and environmentally friendly alternative to disposable filters. The robust frame and premium materials ensure long-lasting performance, even in harsh driving environments. Whether you're looking to boost overall engine efficiency or extend maintenance intervals, this advanced air filter provides a reliable solution for enthusiasts who demand both power and protection.

• aFe Pro DRY S:

• Oil-Free Maintenance – No oiling required, making it easy to clean and reuse with just soap and water.
• Excellent Filtration – Dual-layer synthetic media captures fine dust and debris, ideal for dry or dusty environments.
• Improved Throttle Response – Offers better mid-to-high RPM performance and a deeper engine tone.
• Eco-Friendly & Cost-Effective – Reusable design reduces waste and saves money over time.
• Safe for MAF Sensors – No oil means reduced risk of fouling sensitive electronic.

aFe Pro 5R:

• Maximum Airflow – Five layers of oiled cotton gauze deliver high flow for performance gains.
• Enhanced Horsepower – Ideal for performance vehicles needing more air at higher RPMs.
• Reusable & Durable – Washable and re-oilable for long-term use.
• Aggressive Engine Sound – Adds a noticeable growl under throttle.
• Track-Tested – Proven performance for street and track applications.
Installation Notes
Installation Difficulty:
Level 1Beginner
Installation Time: Less than an hour
Parts Included
1 Air Filter
Warranty
Limited Lifetime Warranty