- Designed to increase horsepower
- Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
- Washable and reusable oil-free filter media
- AEM logo on the airbox cover
- Backed by AEM Limited Lifetime Warranty
The AEM 21-785DS fits some BMW 228i, BMW 320i, BMW 328i, and BMW 428i models.
The AEM-21-785DS is designed to replace the restrictive air filter and airbox of some BMW 320i and 328i models with 2.0L turbo 4 cylinder engines. This enclosed system is designed with an upper and lower airbox to maximize air supply to the air filter, and acts as a heatshield. The 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). A MAF sensor extension and other hardware is provided for the installation. An AEM logo provides the finishing touche on the airbox cover. Designed to increase horsepower this air intake system also gives the BMW's engine a facelift. 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 21-785DS vehicle applications to determine the legal status for each vehicle.
AEM 21-785DS Product Specifications
| Estimated Horsepower Gain |
14 HP @ 4700 RPM |
| Replacement Filter |
21-1015DK |
| Air Filter Color |
Red |
| Air Filter Material |
Non-woven Synthetic |
| Air Filter Outlet Shape |
Round |
| Clamps Included |
No Clamps Required |
| Clamp Material |
No Clamps Required |
| Clamp Style |
No Clamps Required |
| Couplers Included |
None |
| Product Style |
AEM Cold Air Intake System |
| Intake Pipe Color / Finish |
Black |
| Intake Pipe Material |
High-Density Polyethylene |
| Street Legal In All US States |
No |
| TUV Approved (Europe) |
No |
| Weight |
14.5 lb (6.6 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 |
