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.
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.

Application Summary:

Year Make/Model
2016-2018 Ford Focus
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-21-852C
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 Stainless Steel
Clamp Quantity 2
Clamp Style Worm Gear
Clamps Included 2
Country of Origin (Primary) US
Coupler Color Black
Coupler Color/Finish Black
Couplers Included 1
Emission Code Not in CA
Estimated Horse Power Gain 15.7 HP @ 4286 RPM
Estimated Horsepower Gain 15.7 HP @ 4286 RPM
Filter Color Red
Filter Material Non-woven Synthetic
Harmonized Tariff Code (Schedule B) 8421310000
Hazardous Material Code N
Horse Power Increase 16 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 9.400 lbs. (4.3 kg)
Life Cycle Status Code Available to Order
Mass Air Flow Sensor Adapter Included No
Mass Air Flow Sensor Included Mass Air Flow Sensor Adapter Included When Required
Mounting Hardware Included Yes
NAFTA Preference Criterion Code B
Oil Included Yes
Package Material Corrugated
Package Type Box
Product Style AEM Cold Air Intake System
Replacement Filter 21-2073DK
RPM 4286
SDR Required Flag N
Standard Pack 1
Street Legal No
Street Legal In All US States Not legal for sale or use in California on any pollution controlled motor vehicle.
TUV Approved (Europe) No
Warranty Limited Lifetime
Weight 9.4 lb (4.3 kg)
GTIN 00024844369215

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