AEM Induction Systems / 21-863WR

Part #: 21-863WR
UPC: 024844372635

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Brand: AEM Induction Systems Series: Cold Air Induction Systems

Description: AEM's mandrel-bent aluminum cold air intake systems are guaranteed to provide an increase in horsepower and torque, and are protected by the AEM Lifetime Limited Warranty.

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Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Description

AEM cold air intake systems are designed to increase horsepower and torque. The system includes an oversized AEM DRYFLOW synthetic washable air filter, engineered to provide outstanding airflow, filtration, and performance, and also features a mandrel-bent aluminum intake tube and high quality hardware. The oversized, conical filter design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect intake air from the high temperature of your engine bay, and the factory fresh air duct attaches to the heat shield. The entire system can typically be installed in less than 90 minutes.

Features & benefits

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.

Information

Associated products: AEM-21-2157DK DryFlow Air Filter, AEM-1-1000 Air Filter Cleaner

Application summary

Year	Make / model
2019-2021	Subaru WRX STI

Specifications

GTIN: 00024844372635
Weight: 9.2 lb
Height: 12.25 in
Length: 20.25 in
Width: 12.25 in
EO: Legal US
Life cycle: Available to Order
Alt. part number: AEM-21-863WR
AAM brand code: AEK
Warehouse brand code: AEK
AAIA brand code: DSHD

Attributes

Air Box Included: No
Air Filter Color: Red
Air Filter Element Washable: Yes
Air Filter Material: Non-woven Synthetic
Air Filter Outlet Shape: Round
Air Filter Washable: Yes
Alternate Part Number: AEM-21-863WR
CARB EO Number: D-670-25
California Proposition 65: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
California Restricted: Not legal for sale or use in California
Clamp Color: Natural
Clamp Color/Finish: Natural
Clamp Material: Steel
Clamp Quantity: 3
Clamp Style: Regular
Clamps Included: 3
Coupler Color: Black
Coupler Color/Finish: Black
Couplers Included: 1
Estimated Horse Power Gain: 16.5 HP @ 5224 RPM
Estimated Horsepower Gain: 16.5 HP @ 5224 RPM
Filter Color: Red
Filter Material: Non-Woven Synthetic
Horse Power Increase: 17 HP
Intake Pipe Color: Gunmetal Gray
Intake Pipe Color / Finish: Gunmetal Gray
Intake Pipe Material: Aluminum
Intake Pipe Ports: All intake tube ports needed for the specified applications are included
Item Weight: 9.200 lbs. (4.2 kg)
Mass Air Flow Sensor Adapter Included: Yes
Mass Air Flow Sensor Included: Mass Air Flow Sensor Adapter Included When Required
Mounting Hardware Included: Yes
Oil Included: No
Package Material: Corrugated
Package Type: Box
Product Style: AEM Cold Air Intake System
RPM: 5224
Replacement Filter: 21-2157DK
Street Legal: No
Street Legal In All US States: Not legal for sale or use in California on any pollution controlled motor vehicle. NOTE: Some specific models and years may be legal in CA. Check the CARB status on your parts at knfilters.com.
TUV Approved (Europe): No
Title: AEM AEM-21-863WR Cold Air Intake System
Warranty: Limited Lifetime
Weight: 9.2 lb (4.2 kg)