AEM Induction 21-874C Performance Cold Air Intake System for 2018-2020 Subaru Forester 2.5L

This Performance Air Intake System allows your engine to breath more air compared to the restrictive factory air intake housing. It is designed, tuned, and dyno-tested to produce more horsepower and torque. The cone-shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before cleaning is needed (depending on driving conditions). A custom shaped heat shield with edge trim lining is included to keep engine bay heat from the air intake. The air intake tube is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish. This air intake system is backed by AEM's Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the vehicle applications to determine the legal status for each vehicle. AEM's Performance Cold Air Intake Systems are designed, tuned and dyno-tested to give your engine more power and acceleration by replacing the restrictive factory air filter, air intake tubing and air box assembly. Associated products: AEM-1-4007 Air Filter Wrap, AEM-21-2113DK DryFlow Air Filter, AEM-1-1000 Air Filter Cleaner

• Utilizes washable, reusable, oil-free synthetic filter media that preserves airflow efficiency, traps harmful contaminants, and provides long-term value over disposable filters.
• AEM Lifetime Limited Warranty

Upgrade the airflow to your Subaru Forester 2.5L engine with the AEM Induction 21-874C Performance Cold Air Intake System. Designed, tuned, and dyno-tested to replace the restrictive factory air filter, intake tubing, and airbox assembly, this system helps deliver improved airflow, throttle response, horsepower, torque, and acceleration. Its application-specific design supports dependable performance for compatible 2018-2020 Subaru Forester models.

The system includes an AEM DRYFLOW synthetic air filter made with washable, reusable, oil-free filter media. Unlike traditional oiled filters, the oil-free design helps maintain airflow efficiency while trapping harmful contaminants. The filter can be serviced for up to 100,000 miles before cleaning may be required, depending on driving conditions. A custom-shaped heat shield with edge trim helps separate the intake from hot engine-bay air, supporting cooler, denser airflow.

The intake tube is constructed from mandrel-bent aluminum and finished with a durable gunmetal gray powder coating for long-lasting appearance and protection. The AEM Induction 21-874C is backed by AEM’s Lifetime Limited Warranty. Fitment includes select 2018, 2019, and 2020 Subaru Forester vehicles equipped with the 2.5L engine; verify the exact vehicle application before installation.

Important emissions information: This intake is not approved for sale or use in California and other states that adopt California emissions standards. A required emissions acknowledgment may apply. This product is not identified as EPA approved. Check applicable local regulations and vehicle-specific emissions requirements before purchase or installation.

What's Included

• AEM DRYFLOW synthetic air filter
• Mandrel-bent aluminum intake tube
• Custom-shaped heat shield with edge trim
• Installation hardware and components

Key Product Specifications & Technical Data

• Brand: AEM Induction
• Part Number: 21-874C
• Product Type: Performance cold air intake system
• Vehicle Application: Select 2018-2020 Subaru Forester models
• Engine Application: 2.5L
• Filter Type: Washable, reusable, oil-free synthetic DRYFLOW filter
• Intake Tube Material: Mandrel-bent aluminum
• Finish: Gunmetal gray powder coat

Features:

• Increased Airflow: Replaces restrictive factory intake components to support improved engine breathing, horsepower, torque, throttle response, and acceleration.
• Oil-Free DRYFLOW Filter: Washable and reusable synthetic filter media traps contaminants without requiring filter oil and may provide service intervals of up to 100,000 miles depending on driving conditions.
• Heat Shield Protection: Custom-shaped heat shield with edge trim helps block hot engine-bay air from reaching the intake filter.
• Durable Construction and Warranty: Mandrel-bent aluminum intake tubing with a gunmetal gray powder-coated finish is backed by AEM's Lifetime Limited Warranty.

Fitments:
2018 Subaru Forester 2.5i
2018 Subaru Forester 2.5i Limited
2018 Subaru Forester 2.5i Premium
2018 Subaru Forester 2.5i Touring
2019 Subaru Forester Base
2019 Subaru Forester Limited
2019 Subaru Forester Premium
2019 Subaru Forester Sport
2019 Subaru Forester Touring
2020 Subaru Forester Base
2020 Subaru Forester Limited
2020 Subaru Forester Premium
2020 Subaru Forester Sport
2020 Subaru Forester Touring
2021 Subaru Forester Base
2021 Subaru Forester Limited
2021 Subaru Forester Premium
2021 Subaru Forester Sport
2021 Subaru Forester Touring
2022 Subaru Forester Base
2022 Subaru Forester Limited
2022 Subaru Forester Premium
2022 Subaru Forester Sport
2022 Subaru Forester Touring
2022 Subaru Forester Wilderness
2023 Subaru Forester Base
2023 Subaru Forester Limited
2023 Subaru Forester Premium
2023 Subaru Forester Sport
2023 Subaru Forester Touring
2023 Subaru Forester 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
2025 Subaru Forester Base
2025 Subaru Forester Limited
2025 Subaru Forester Limited Hybrid
2025 Subaru Forester Premium
2025 Subaru Forester Premium Hybrid
2025 Subaru Forester Sport
2025 Subaru Forester Sport Hybrid
2025 Subaru Forester Touring
2025 Subaru Forester Touring Hybrid
2025 Subaru Forester Wilderness
2026 Subaru Forester Base
2026 Subaru Forester Limited
2026 Subaru Forester Limited Hybrid
2026 Subaru Forester Premium
2026 Subaru Forester Premium Hybrid
2026 Subaru Forester Sport
2026 Subaru Forester Sport Hybrid
2026 Subaru Forester Touring
2026 Subaru Forester Touring Hybrid
2026 Subaru Forester Wilderness

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