aFe MagnumFLOW Air Filter ProDry S 4 F x 6 B x 4-1/2T (INV) x 7 H aFe AFE21-91057
aFe MagnumFLOW Air Filter ProDry S 4 F x 6 B x 4-1/2T (INV) x 7 H aFe AFE21-91057
aFe MagnumFLOW Air Filter ProDry S 4 F x 6 B x 4-1/2T (INV) x 7 H aFe AFE21-91057
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aFe MagnumFLOW Air Filter ProDry S 4 F x 6 B x 4-1/2T (INV) x 7 H

aFe
AFE21-91057
802959210932
Air Filters - Universal Fit
13 Units In Stock - Ships Next Business Day
$ 85.00
$ 85.00

SKU: 21-91057 | UPC: 802959210932

aFe Power MagnumFLOW Air Filter ProDry S 4in Flange x 6in Base x 4-1/2in Top Inverted x 7in Height Universal

The aFe Power 21-91057 MagnumFLOW ProDry S air filter is a conical replacement filter for performance intake systems. This universal clamp-on design fits 4-inch intake tubes on trucks cars and SUVs. It provides high airflow 99.2% filtration efficiency and simple maintenance for reliable engine protection and power gains.

Key Features

  • ProDry S Media: Three layers of non-woven synthetic mesh capture 99.2% of contaminants without oil for consistent performance
  • Precise Dimensions: 4-inch inside flange diameter 6-inch base 4.5-inch inverted top diameter and 7-inch height ensure perfect fit in compatible systems
  • Washable Reusable Design: Cleans easily with soap and water supports multiple cleaning cycles and extends service life
  • Polyurethane Construction: Full frame on all sides with pliable flange and integrated bumps creates airtight seal for long-term durability
  • High Flow Pleats: Tall evenly spaced pleats increase airflow while holding more dust for longer intervals between cleanings

Product Notes

  • Direct replacement for aFe Magnum FORCE intake systems using this filter size
  • Inspect and clean every 30000 to 50000 miles based on driving conditions
  • Arrives ready to install with no pre-oiling required

Installation Notes

  • Professional installation recommended.
  • Clamp-on style slides onto 4-inch intake tube with included clamp for quick swap
  • Centered flange aligns easily with stock or aftermarket intake housings

This Part Fits

Year Make Model Submodel
Universal Fit All All 4in Intake Tube Systems

Why Choose aFe Power?

  • Engineered and manufactured in the USA with dyno-proven designs
  • Premium materials built for repeated use and harsh conditions
  • Backed by decades of intake system innovation

Frequently Asked Questions

  • Q: Does this filter fit specific vehicles?
    A: Yes as a universal clamp-on it works with any performance intake featuring a 4-inch ID tube including aFe Magnum FORCE systems on trucks cars and SUVs
  • Q: What material is used in the filter?
    A: Non-woven synthetic ProDry S media in gray color provides oil-free filtration with three progressive mesh layers
  • Q: What maintenance is required?
    A: Wash with soap and water air dry and reinstall no oil needed supports unlimited cleanings over the filter life

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Protective cardboard box 9in x 9in x 8in
  • Weight: 1.85 lbs
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