| Year | Make | Model |
|---|---|---|
| 2015 - 2021 | BMW | M2 |
| 2014 - 2020 | BMW | M4 |
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aFe MagnumFLOW Pro DRY S 4in Air Filter | Universal (21-91108)
aFe MagnumFLOW Pro DRY S 4in Air Filter | Universal (21-91108)
SKU:21-91108
In stock
Regular price
$75.00 USD
Regular price
$85.00 USD
Sale price
$75.00 USD
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â–¶ Vehicle Fitments
The aFe MagnumFLOW Pro DRY S Universal Air Filter is a high-performance, oil-free conical air filter designed to maximize airflow and filtration efficiency. Constructed with three layers of progressively finer synthetic mesh media, it features a 100% polyurethane top and base for durability and a secure fit. The tall, evenly spaced pleats enhance dust holding capacity, allowing for longer intervals between cleanings. This washable and reusable filter offers easy maintenance and reliable performance, while the pliable polyurethane flange with integrated bumps ensures a tight, leak-free seal throughout its service life.
This universal air filter measures 4 inches in front diameter, 6 inches in base diameter, 5.5 inches in inverted thickness, and 7.5 inches in height, making it suitable for a wide range of applications. It is designed for use in various street and performance vehicles where a high-flow, reusable filter is desired. The filter installs as a direct replacement or upgrade to existing air filters, providing enhanced airflow and filtration without the need for oiling. Its versatile size and construction make it ideal for enthusiasts seeking improved engine breathing and longevity in demanding conditions.
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Overview
Overview
aFe Air Filter
Universal Fitment
Part #: 21-91108
Overview
The aFe MagnumFLOW Pro DRY S Universal Air Filter is a high-performance, oil-free conical air filter designed to enhance airflow while providing exceptional filtration. Engineered for automotive enthusiasts and professionals seeking a reliable and low-maintenance air filtration solution, this filter supports improved engine breathing without compromising protection. Its washable and reusable design offers long-term convenience and cost savings compared to disposable filters.
Ideal for a wide range of vehicles, this air filter combines advanced synthetic media with a durable polyurethane frame to deliver consistent performance and a secure seal. It is perfect for those who prioritize ease of maintenance and sustained airflow efficiency in their vehicle’s intake system.
Key Features
This air filter is crafted to balance airflow and filtration with durable construction and practical usability:
- Three layers of progressively finer synthetic mesh media for effective dust capture and airflow support
- 100% polyurethane top and base for durability and structural integrity
- Oil-free design eliminates the need for messy oiling and simplifies maintenance
- Washable and reusable for multiple cleaning cycles, extending filter life and reducing replacement costs
- Tall, evenly spaced pleats maximize dust holding capacity for longer service intervals
- Pliable polyurethane flange with integrated bumps ensures a tight, leak-free seal throughout the filter’s lifespan
Installation & Fitment
This universal air filter is designed to fit a variety of intake systems with its 4-inch front diameter, 6-inch base diameter, 5.5-inch inverted thickness, and 7.5-inch height. Fitment should be verified against your vehicle’s intake specifications and the part number to ensure compatibility. Installation is straightforward, typically requiring no special tools beyond standard intake removal and replacement procedures.
