The AEM 21-451R Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Ford Focus SVT models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is relocated to the driver-side wheel well which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable red powder coated finish. This air intake system was developed to accommodate the engine's factory emissions control devices including the MAF and a replacement silicone engine breather hose. The tapered cylinder 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). The 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 21-451R vehicle applications to determine the legal status for each vehicle.
Specifications:
| Description_DEF |
Engine Cold Air Intake Performance Kit |
| Description_DES |
Cold Air Intake System |
| Description_INV |
Cold Air Intake System |
| Description_EXT |
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. |
| Description_SHO |
Cold Air Intake Syst |
| Description_MKT |
The AEM 21-451R Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Ford Focus SVT models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is relocated to the driver-side wheel well which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable red powder coated finish. This air intake system was developed to accommodate the engine's factory emissions control devices including the MAF and a replacement silicone engine breather hose. The tapered cylinder 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). The 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 21-451R vehicle applications to determine the legal status for each vehicle. |
| Clamp Color/Finish |
Natural |
| Weight |
7 lb (3.2 kg) |
| Air Filter Color |
Red |
| Package Type |
Box |
| Prop 65 - Short Label |
WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov |
| Prop 65 (C, R or CR) |
CR |
| Replacement Filter |
21-203DK |
| Air Filter Outlet Shape |
Round |
| CARB EO Number |
D-670-15 |
| Package Material |
Paperboard |
| Warranty |
Limited Lifetime |
| Air Box Included |
No |
| Air Filter Material |
Non-woven Synthetic |
| Clamp Material |
Steel |
| Clamp Style |
Regular |
| Clamps Included |
5 |
| Intake Pipe Material |
Aluminum |
| Intake Pipe Ports |
All intake tube ports needed for the specified applications are included |
| Mass Air Flow Sensor Adapter Included |
Yes |
| Mounting Hardware Included |
Yes |
| Prop 65 Warning Label |
https://www.knfilters.com/images/l/prop65.jpg |
| Prop 65 Yes/No |
Yes |
| Street Legal In All US States |
Yes |
| Air Filter Washable |
Yes |
| Coupler Color/Finish |
Not Applicable |
| Couplers Included |
None |
| Intake Pipe Color / Finish |
Red |
| Oil Included |
No |
| Product Style |
AEM Cold Air Intake System |
| Title |
AEM AEM-21-451R Cold Air Intake System |
| TUV Approved (Europe) |
No |
| Length |
12.0000 |
| Width |
12.0000 |
| Height |
24.0000 |
| Weight |
7.0000 |
