aFe 21-91115 Magnum FLOW Pro DRY S Dual Filters 17-20 Ford F-150/Raptor V6-3.5L

Vehicle Fitment

• 2017-2020 Ford F-150 Raptor (Gen 2, V6-3.5L EcoBoost tt, RWD/4WD)
• 2017-2020 Ford F-150 (All Trims, V6-3.5L EcoBoost tt, RWD/4WD)
• 2018-2020 Ford F-150 (All Trims, V6-2.7L EcoBoost tt, RWD/4WD)
• 2018-2021 Ford Expedition (All Trims, V6-3.5L EcoBoost tt, RWD/4WD)
• 2018-2021 Lincoln Navigator (All Trims, V6-3.5L EcoBoost tt, RWD/4WD)

Fitment Notes

• This filter is a replacement for aFe POWER Magnum FORCE Stage-2 "Super Raptor" dual cold air intake systems (PN: 51-12882-H, 54-12882-H, 51-12882-B, 54-12882-B). It is not a drop-in OE replacement for the factory airbox.
• Sold as a pair (2x filters) with stainless steel clamps. Each filter features dual 3" inlets to match the Stage-2 Super Raptor dual-tube intake design.
• Compatible with the V6-3.5L EcoBoost (tt) and V6-2.7L EcoBoost (tt) only. Not compatible with V8 engines or naturally aspirated configurations.
• Not for use with any intake system other than the aFe POWER Magnum FORCE Stage-2 Super Raptor dual systems listed above.

Features

• Pro DRY S Filter Media: Three layers of progressively finer oil-free synthetic media provide maximum filtration efficiency and excellent dust holding capacity with zero oiling required - ideal for street and light off-road use.
• Dual 3" Inlet Design: Each filter features a dual 3" flange inlet configuration engineered to mate precisely with the Super Raptor's dual 3-1/2" mandrel-bent intake tubes for balanced airflow and maximum velocity.
• Inverted Conical Top Design: The inverted top increases usable filter surface area to extend service intervals and maximize airflow throughput between cleanings.
• Rounded Deep Open Pleats: Evenly spaced, rounded pleat design maximizes usable filter surface area to deliver increased airflow and superior dust holding capacity over factory filters.
• 100% Polyurethane Base and Top: Unlike foam or rubber that degrades under repeated heat cycles, the full polyurethane construction retains its molded shape and structural integrity over the life of the filter.
• Progressive Bump Seal: Pliable polyurethane flange with integrated sealing bumps conforms to the intake housing for a tight, leak-free seal without gaskets or sealants - and always returns to its original form.
• Washable and Reusable: Designed for multiple cleaning cycles using aFe POWER Cleaner - reduces long-term maintenance cost and eliminates disposable filter waste.
• Oil-Free Maintenance: No re-oiling required after cleaning, preventing MAF sensor contamination and simplifying filter servicing compared to oiled media alternatives.
• Balanced Dual-Filter Airflow: Engineered as a matched pair to equalize intake tube pressure across both sides of the Super Raptor system's H-pipe balance tube for consistent power delivery.

Specifications

• Filter Shape: Inverted Conical (Dual Inlet)
• Flange Diameter: 3" (Dual)
• Base Dimensions: 8.25" x 6.25" (mt2)
• Top Dimensions: 7.25" x 5"
• Filter Height: 9"
• Filter Media: Pro DRY S - 3-layer progressive oil-free synthetic
• Frame Construction: 100% polyurethane base and top
• Seal Type: Integrated progressive polyurethane bump seal
• Compatible Intake Systems: aFe POWER 51-12882-H, 54-12882-H, 51-12882-B, 54-12882-B
• Finish: Black / Grey

Included Components

• 2x aFe Magnum FLOW Pro DRY S Air Filters (PN: 21-91115)
• 2x Stainless Steel Clamps

Product Description

The aFe POWER 21-91115 Magnum FLOW Pro DRY S Air Filter is the factory-matched replacement filter for the aFe Magnum FORCE Stage-2 "Super Raptor" dual cold air intake systems designed for the 2017-2020 Ford F-150 and F-150 Raptor with the V6-3.5L EcoBoost engine, as well as the 2018-2020 F-150 V6-2.7L EcoBoost, 2018-2021 Ford Expedition, and 2018-2021 Lincoln Navigator with the V6-3.5L EcoBoost. Sold as a matched pair, these inverted conical filters feature a unique dual 3" inlet configuration purpose-built to connect directly to the Stage-2 Super Raptor's dual 3-1/2" mandrel-bent aluminum intake tubes. With dimensions of 3" F (Dual) x (8.25" x 6.25") B x (7.25" x 5") T x 9" H, this is a precision-engineered filter pair - not a universal or OE drop-in - and must be used exclusively with the compatible aFe intake systems noted above.

The Pro DRY S media used in this filter features three layers of progressively finer oil-free synthetic material, providing excellent filtration efficiency and dust holding capacity without requiring any oil during cleaning or reinstallation. This eliminates the risk of MAF sensor contamination associated with oiled filters and simplifies the maintenance process - just wash with aFe POWER Cleaner, dry, and reinstall. The rounded deep open pleat design, inverted conical top, and full 360-degree polyurethane frame all work together to maximize usable filter surface area, extend cleaning intervals, and deliver consistent, high-flow performance over the life of the filter.

For F-150 Raptor owners and EcoBoost F-150 enthusiasts running the aFe Stage-2 Super Raptor intake system, this filter pair ensures the intake continues to perform at its full potential. The integrated bump seal on each filter guarantees a leak-free connection to the intake housings without the need for gaskets or sealants. Whether you're replacing worn filters on a high-mileage Super Raptor intake or restoring a used system back to peak performance, the 21-91115 delivers the fit and media quality that the Stage-2 system was originally engineered around.