AEM Cold Air Intake System - Subaru Forester 2.5L 2018-2026
AEM Cold Air Intake System - Subaru Forester 2.5L 2018-2026
AEM Cold Air Intake System - Subaru Forester 2.5L 2018-2026
AEM Cold Air Intake System - Subaru Forester 2.5L 2018-2026
AEM Cold Air Intake System - Subaru Forester 2.5L 2018-2026
AEM Cold Air Intake System - Subaru Forester 2.5L 2018-2026
AEM Cold Air Intake System - Subaru Forester 2.5L 2018-2026
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AEM Cold Air Intake System - Subaru Forester 2.5L 2018-2026

$369.99
AEM Induction
AEM21-874C
Out of stock Many in stock
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AEM Cold Air Intake System - Subaru Forester 2.5L 2018-2026
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.
  • Precision-tuned and dyno-validated to enhance throttle response, sharpen acceleration, and improve overall engine efficiency, helping maximize horsepower and drivability.
  • Creates a deeper, more aggressive induction tone that highlights the intake system’s improved airflow.
  • Features low-restriction intake tubing that increases air velocity and high-volume airflow for maximum performance gains.
  • Equipped with a long-life, high-capacity air filter capable of up to 100,000 miles before servicing (depending on driving conditions), reducing maintenance while maintaining strong, clean airflow.
  • Utilizes washable, reusable, oil-free synthetic filter media that preserves airflow efficiency, traps harmful contaminants, and provides long-term value over disposable filters.

Estimated Horsepower Gain 8.05 HP @ 4358 RPM
Replacement Filter 21-2113DK
Air Filter Color Red
Air Filter Material Non-woven Synthetic
Air Filter Outlet Shape Round
Clamps Included 3
Clamp Material Stainless Steel
Clamp Style Worm Gear
Couplers Included 1
Product Style AEM Cold Air Intake System
Intake Pipe Color / Finish Gunmetal Gray
Intake Pipe Material Aluminum
Street Legal In All US States Not legal for sale or use in California on any pollution controlled motor vehicle.
TUV Approved (Europe) No
Weight 11.6 lb (5.3 kg)
Product Box Height 10.6 in (269 mm)
Product Box Length 35.4 in (899 mm)
Product Box Width 13.3 in (338 mm)
California Restricted Not legal for sale or use in California
Mounting Hardware Included Yes
Warranty Limited Lifetime



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Due to the recent suspension of the De Minimis Tariff Policy, there may be tariffs applicable to your order if the item ships from outside of the United States. Any tariffs / import duties are strictly the responsibility of the consumer. Returns Policy

Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new. Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.

Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.

Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.

Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.

Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.

Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.

You can simply contact us via email / telephone for a live inventory check

P65 WARNING: Cancer and Reproductive Harm

Find more information at www.P65Warnings.ca.gov.

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