aFe Magnum FLOW Pro DRY S Universal Air Filter 4.5in F / 9inx7.5in B / 6.75inx5.5in T (Inv) / 9in H aFe AFE21-91127
aFe Magnum FLOW Pro DRY S Universal Air Filter 4.5in F / 9inx7.5in B / 6.75inx5.5in T (Inv) / 9in H aFe AFE21-91127
aFe Magnum FLOW Pro DRY S Universal Air Filter 4.5in F / 9inx7.5in B / 6.75inx5.5in T (Inv) / 9in H aFe AFE21-91127
aFe Magnum FLOW Pro DRY S Universal Air Filter 4.5in F / 9inx7.5in B / 6.75inx5.5in T (Inv) / 9in H aFe AFE21-91127
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aFe Magnum FLOW Pro DRY S Universal Air Filter 4.5in F / 9inx7.5in B / 6.75inx5.5in T (Inv) / 9in H

aFe
AFE21-91127
802959212035
Air Filters - Universal Fit
19 Units In Stock - Ships Next Business Day
$ 104.00
$ 104.00

SKU: 21-91127 | UPC: 802959212035

aFe Magnum FLOW Pro DRY S Universal Air Filter 4.5in F / 9inx7.5in B / 6.75inx5.5in T (Inv) / 9in H

This aFe Power Magnum FLOW Pro DRY S air filter delivers high airflow through its oil-free synthetic media for engines with 4.5-inch clamp-on intake tubes. The inverted oval conical design with 9-inch height fits universal applications in performance intake systems. Engineered for easy cleaning and long service life, it captures 99.2% of dust while allowing unrestricted air intake for power gains.

Key Features

  • Pro DRY S Media: Three layers of progressively finer non-woven synthetic mesh trap 99.2% of contaminants without oil for simple maintenance
  • Polyurethane Frame: 100% polyurethane top, base, and sides resist cracking for extended filter durability
  • Washable Design: Cleans easily with soap and water, reusable for multiple cycles with tall pleats holding more dust
  • Pliable Flange: 4.5-inch center flange with integrated bumps seals tightly to intake tubes without leaks
  • High Airflow: Open pleat spacing and conical shape increase air volume for better throttle response and horsepower

Product Notes

  • Pre-filtered media requires no oiling before installation
  • Service every 30,000-50,000 miles depending on driving conditions
  • Ships in protective retail packaging to prevent damage

Installation Notes

  • Professional installation recommended.
  • Clamp directly onto 4.5-inch intake tube using existing hardware
  • Compatible with aFe Magnum FORCE intake systems and similar universal setups

This Part Fits

Year Make Model Submodel
Universal All All 4.5in Clamp-On Intake Applications

Why Choose aFe Power?

  • Trusted by racers and daily drivers for dyno-proven air filters
  • Built with precision engineering for leak-free performance
  • Backed by extensive testing for real-world power increases

Frequently Asked Questions

  • Q: Will this filter fit my 4.5-inch intake tube?
    A: Yes, the 4.5-inch center flange clamps onto standard 4.5-inch tubes in universal aFe intakes and compatible systems
  • Q: What material is used in the filter media?
    A: Non-woven synthetic Pro DRY S media in gray color provides oil-free filtration and easy washing
  • Q: What is the maintenance and warranty?
    A: Washable and reusable with aFe Power limited lifetime warranty on workmanship and materials

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Retail box 13 x 11 x 11 inches
  • Weight: 1.95 lbs
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