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 |