aFe Magnum FLOW Pro DRY S Air Filter 31-10327 for Subaru Impreza, Crosstrek, Forester, Ascent, Legacy and Outback

This filter features three layers of oil-free synthetic media and requires no oil during maintenance to provide maximum convenience. Its progressive layering provides great filtration efficiency and dust holding capacity. This media is best suited for street use. Pro DRY S filters are easily recharged with aFe's POWER CLEANER. aFe POWER performance air filters use a rounded, evenly spaced pleat design which allows for more usable filter surface area, providing increased flow and greater dust holding capacity. This pliable sealing surface conforms to even the most uneven filter housing, making for a perfect filter fit and sealing surface every time. This design eliminates the use of gaskets or sealants and always goes back to its original form. All aFe POWER flat panel performance air filters are constructed with a full 360-degree polyurethane frame. Unlike other materials that degrade after repeated heat cycles in an engine bay, polyurethane maintains its original molded shape. Magnum FLOW OE Replacement Air Filter w/ Pro DRY S Media Subaru Impreza 17-26/Crosstrek 18-26/Forester 19-26/Ascent 19-25/Legacy 20-25/Outback 20-26

• This Pro DRY S air filter features three layers of oil-free synthetic media, making it our easiest to maintain performance air filter.
• Pro DRY S Filter Media Features Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience
• Deep, Open Pleats Allow for Increased Surface Area, Flow, and Dust Holding Capacity
• Washable and Reusable for Multiple Cleaning Cycles

Upgrade your vehicle’s intake protection and airflow with the aFe Magnum FLOW Pro DRY S Air Filter, part number 31-10327. Designed as an OE replacement for select Subaru applications, this washable and reusable performance air filter uses three layers of oil-free synthetic media to deliver dependable filtration without requiring filter oil during maintenance. The progressive dry-media design is well suited for street use and can be recharged with aFe POWER CLEANER.

The rounded, evenly spaced pleats increase usable filter surface area to support improved airflow and enhanced dust-holding capacity. A full 360-degree polyurethane frame provides a durable, precise sealing surface that conforms to irregularities in the factory airbox without requiring additional gaskets or sealants. Unlike materials that can deteriorate through repeated engine-bay heat cycles, polyurethane retains its molded shape for long-term fit and performance. The flexible sealing surface also returns to its original form after installation and servicing.

Built for convenient long-term ownership, the aFe Pro DRY S media can be washed and reused through multiple cleaning cycles. This filter is designed to fit select 2017–2026 Subaru Impreza, 2018–2026 Crosstrek, 2019–2026 Forester, 2019–2025 Ascent, 2020–2025 Legacy, and 2020–2026 Outback models. Verify vehicle year, engine, and factory airbox configuration before ordering.

Product Specifications and Technical Data

• Brand: aFe POWER
• Part Number: 31-10327
• Product Type: OE replacement performance air filter
• Filter Media: Three-layer progressive synthetic dry media
• Maintenance: Washable and reusable; no oil required
• Frame Material: 360-degree polyurethane
• Recommended Use: Street-driven vehicles
• Vehicle Coverage: Select Subaru Impreza, Crosstrek, Forester, Ascent, Legacy, and Outback applications

What's Included

One aFe Magnum FLOW Pro DRY S performance air filter.

Features:

• Three layers of oil-free synthetic media provide convenient maintenance and dependable filtration.
• Rounded, evenly spaced pleats increase usable surface area, airflow potential, and dust-holding capacity.
• Washable and reusable construction supports multiple cleaning cycles for extended service life.
• Full 360-degree polyurethane frame delivers a durable, flexible sealing surface without additional gaskets or sealants.

Fitments:
2017 Subaru Impreza Base
2017 Subaru Impreza Limited
2017 Subaru Impreza Premium
2017 Subaru Impreza Sport
2018 Subaru Crosstrek Base
2018 Subaru Crosstrek Limited
2018 Subaru Crosstrek Premium
2018 Subaru Impreza Base
2018 Subaru Impreza Limited
2018 Subaru Impreza Premium
2018 Subaru Impreza Sport
2019 Subaru Ascent Base
2019 Subaru Ascent Limited
2019 Subaru Ascent Premium
2019 Subaru Ascent Touring
2019 Subaru Crosstrek Base
2019 Subaru Crosstrek Hybrid
2019 Subaru Crosstrek Limited
2019 Subaru Crosstrek Premium
2019 Subaru Forester Base
2019 Subaru Forester Limited
2019 Subaru Forester Premium
2019 Subaru Forester Sport
2019 Subaru Forester Touring
2019 Subaru Impreza Base
2019 Subaru Impreza Limited
2019 Subaru Impreza Premium
2019 Subaru Impreza Sport
2020 Subaru Ascent Base
2020 Subaru Ascent Limited
2020 Subaru Ascent Premium
2020 Subaru Ascent Touring
2020 Subaru Crosstrek Base
2020 Subaru Crosstrek Hybrid
2020 Subaru Crosstrek Limited
2020 Subaru Crosstrek Premium
2020 Subaru Forester Base
2020 Subaru Forester Limited
2020 Subaru Forester Premium
2020 Subaru Forester Sport
2020 Subaru Forester Touring
2020 Subaru Impreza Base
2020 Subaru Impreza Limited
2020 Subaru Impreza Premium
2020 Subaru Impreza Sport
2020 Subaru Legacy Base
2020 Subaru Legacy Limited
2020 Subaru Legacy Limited XT
2020 Subaru Legacy Premium
2020 Subaru Legacy Sport
2020 Subaru Legacy Touring XT
2020 Subaru Outback Base
2020 Subaru Outback Limited
2020 Subaru Outback Limited XT
2020 Subaru Outback Onyx Edition XT
2020 Subaru Outback Premium
2020 Subaru Outback Touring
2020 Subaru Outback Touring XT
2021 Subaru Ascent Base
2021 Subaru Ascent Limited
2021 Subaru Ascent Premium
2021 Subaru Ascent Touring
2021 Subaru Crosstrek Base
2021 Subaru Crosstrek Hybrid
2021 Subaru Crosstrek Limited
2021 Subaru Crosstrek Premium
2021 Subaru Crosstrek Sport
2021 Subaru Forester Base
2021 Subaru Forester Limited
2021 Subaru Forester Premium
2021 Subaru Forester Sport
2021 Subaru Forester Touring
2021 Subaru Impreza Base
2021 Subaru Impreza Limited
2021 Subaru Impreza Premium
2021 Subaru Impreza Sport
2021 Subaru Legacy Base
2021 Subaru Legacy Limited
2021 Subaru Legacy Limited XT
2021 Subaru Legacy Premium
2021 Subaru Legacy Sport
2021 Subaru Legacy Touring XT
2021 Subaru Outback Base
2021 Subaru Outback Limited
2021 Subaru Outback Limited XT
2021 Subaru Outback Onyx Edition XT
2021 Subaru Outback Premium
2021 Subaru Outback Touring
2021 Subaru Outback Touring XT
2022 Subaru Ascent Base
2022 Subaru Ascent Limited
2022 Subaru Ascent Onyx Edition
2022 Subaru Ascent Premium
2022 Subaru Ascent Touring
2022 Subaru Crosstrek Base
2022 Subaru Crosstrek Hybrid
2022 Subaru Crosstrek Limited
2022 Subaru Crosstrek Premium
2022 Subaru Crosstrek Sport
2022 Subaru Forester Base
2022 Subaru Forester Limited
2022 Subaru Forester Premium
2022 Subaru Forester Sport
2022 Subaru Forester Touring
2022 Subaru Forester Wilderness
2022 Subaru Impreza Base
2022 Subaru Impreza Limited
2022 Subaru Impreza Premium
2022 Subaru Impreza Sport
2022 Subaru Legacy Base
2022 Subaru Legacy Limited
2022 Subaru Legacy Limited XT
2022 Subaru Legacy Premium
2022 Subaru Legacy Sport
2022 Subaru Legacy Touring XT
2022 Subaru Outback Base
2022 Subaru Outback Limited
2022 Subaru Outback Limited XT
2022 Subaru Outback Onyx Edition XT
2022 Subaru Outback Premium
2022 Subaru Outback Touring
2022 Subaru Outback Touring XT
2022 Subaru Outback Wilderness
2022 Subaru WRX Base
2022 Subaru WRX GT
2022 Subaru WRX Limited
2022 Subaru WRX Premium
2023 Subaru Ascent Base
2023 Subaru Ascent Limited
2023 Subaru Ascent Onyx Edition
2023 Subaru Ascent Onyx Edition Limited
2023 Subaru Ascent Premium
2023 Subaru Ascent Touring
2023 Subaru Crosstrek Base
2023 Subaru Crosstrek Hybrid
2023 Subaru Crosstrek Limited
2023 Subaru Crosstrek Premium
2023 Subaru Crosstrek Sport
2023 Subaru Forester Base
2023 Subaru Forester Limited
2023 Subaru Forester Premium
2023 Subaru Forester Sport
2023 Subaru Forester Touring
2023 Subaru Forester Wilderness
2023 Subaru Impreza Base
2023 Subaru Impreza Limited
2023 Subaru Impreza Premium
2023 Subaru Impreza Sport
2023 Subaru Legacy Base
2023 Subaru Legacy Limited
2023 Subaru Legacy Premium
2023 Subaru Legacy Sport
2023 Subaru Legacy Touring XT
2023 Subaru Outback Base
2023 Subaru Outback Limited
2023 Subaru Outback Limited XT
2023 Subaru Outback Onyx Edition
2023 Subaru Outback Onyx Edition XT
2023 Subaru Outback Premium
2023 Subaru Outback Touring
2023 Subaru Outback Touring XT
2023 Subaru Outback Wilderness
2023 Subaru WRX Base
2023 Subaru WRX GT
2023 Subaru WRX Limited
2023 Subaru WRX Premium
2024 Subaru Ascent Base
2024 Subaru Ascent Limited
2024 Subaru Ascent Onyx Edition
2024 Subaru Ascent Onyx Edition Limited
2024 Subaru Ascent Premium
2024 Subaru Ascent Touring
2024 Subaru Crosstrek Base
2024 Subaru Crosstrek Limited
2024 Subaru Crosstrek Premium
2024 Subaru Crosstrek Sport
2024 Subaru Crosstrek Wilderness
2024 Subaru Forester Base
2024 Subaru Forester Limited
2024 Subaru Forester Premium
2024 Subaru Forester Sport
2024 Subaru Forester Touring
2024 Subaru Forester Wilderness
2024 Subaru Impreza Base
2024 Subaru Impreza Sport
2024 Subaru Legacy Base
2024 Subaru Legacy Limited
2024 Subaru Legacy Premium
2024 Subaru Legacy Sport
2024 Subaru Legacy Touring XT
2024 Subaru Outback Base
2024 Subaru Outback Limited
2024 Subaru Outback Limited XT
2024 Subaru Outback Onyx Edition
2024 Subaru Outback Onyx Edition XT
2024 Subaru Outback Premium
2024 Subaru Outback Touring
2024 Subaru Outback Touring XT
2024 Subaru Outback Wilderness
2024 Subaru WRX Base
2024 Subaru WRX GT
2024 Subaru WRX Limited
2024 Subaru WRX Premium
2024 Subaru WRX RS
2024 Subaru WRX TR
2025 Subaru Ascent Bronze Edition
2025 Subaru Ascent Limited
2025 Subaru Ascent Onyx Edition
2025 Subaru Ascent Onyx Edition Touring
2025 Subaru Ascent Premium
2025 Subaru Ascent Touring
2025 Subaru Crosstrek Base
2025 Subaru Forester Base
2025 Subaru Forester Limited
2025 Subaru Forester Premium
2025 Subaru Forester Sport
2025 Subaru Forester Touring
2025 Subaru Forester Wilderness
2025 Subaru Impreza Base
2025 Subaru Impreza Sport
2025 Subaru Legacy Base
2025 Subaru Legacy Limited
2025 Subaru Legacy Premium
2025 Subaru Legacy Sport
2025 Subaru Legacy Touring XT
2025 Subaru Outback Base
2025 Subaru Outback Limited
2025 Subaru Outback Limited XT
2025 Subaru Outback Onyx Edition
2025 Subaru Outback Onyx Edition XT
2025 Subaru Outback Premium
2025 Subaru Outback Touring
2025 Subaru Outback Touring XT
2025 Subaru Outback Wilderness
2025 Subaru WRX GT
2025 Subaru WRX Limited
2025 Subaru WRX Premium
2025 Subaru WRX TS
2026 Subaru Crosstrek Base
2026 Subaru Forester Base
2026 Subaru Forester Limited
2026 Subaru Forester Premium
2026 Subaru Forester Sport
2026 Subaru Forester Touring
2026 Subaru Forester Wilderness
2026 Subaru Impreza Sport
2026 Subaru WRX GT
2026 Subaru WRX Limited
2026 Subaru WRX Premium
2026 Subaru WRX Series.Yellow
2026 Subaru WRX TS

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1