- Guaranteed to increase horsepower and torque
- Mandrel-bent aluminum intake tube paired with an oversized dry air filter
- Engineered to provide high airflow and exceptional filtration
- Replaces factory air filter and intake tube
- DRYFLOW® oil-free filter only requires cleaning every 100,000 miles under normal highway driving conditions
- Typical installation can be completed in 90 minutes or less with simple hand tools
- AEM® Lifetime Limited Warranty
- Will not void vehicle warranty
NOT CARB-APPROVED. ILLEGAL TO USE OR INSTALL IN CALIFORNIA. IF YOU LIVE IN CA, WE CANNOT SHIP YOU THIS ITEM AND YOU WILL BE CHARGED A 10% CANCELLATION FEE IF YOU ORDER. PLEASE LOOK FOR OTHER PRODUCTS WITH CARB APPROVAL.
Installation PDF
Installation Instruction Sheet
Dyno Chart - 2008 Subaru Impreza Sti 2.5L - 36HP Increase
| Estimated Horsepower Gain | 36 HP @ 5300 RPM |
| Replacement Filter | 21-2129D |
| Air Filter Color | Red |
| Air Filter Material | Non-woven Synthetic |
| Air Filter Outlet Shape | Round |
| Clamps Included | 2 |
| Clamp Material | Stainless Steel |
| Clamp Style | Worm Gear |
| Couplers Included | 1 |
| Product Style | AEM Cold Air Intake System |
| Intake Pipe Color / Finish | Gunmetal Gray |
| Intake Pipe Material | Aluminum |
| Street Legal In All US States | No |
| TUV Approved (Europe) | No |
| Weight | 7.4 lb (3.3 kg) |
| Product Box Height | 12.25 in (311 mm) |
| Product Box Length | 20.25 in (514 mm) |
| Product Box Width | 12.25 in (311 mm) |
| California Restricted | Not legal for sale or use in California |
| Mounting Hardware Included | Yes |
| Warranty | Limited Lifetime |
| 2014 Subaru Impreza WRX 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2014 Subaru Impreza WRX STi 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2014 Subaru WRX 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2014 Subaru WRX STI 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2014 Subaru WRX STI 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2013 Subaru Impreza WRX 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2013 Subaru Impreza WRX STi 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2013 Subaru WRX 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2013 Subaru WRX STI 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2013 Subaru WRX STI 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2012 Subaru Impreza WRX 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2012 Subaru Impreza WRX STi 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2012 Subaru WRX 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2012 Subaru WRX STI 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2011 Subaru Impreza WRX 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2011 Subaru Impreza WRX STi 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2010 Subaru Impreza WRX 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2010 Subaru Impreza WRX STi 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2009 Subaru Impreza WRX 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2009 Subaru Impreza WRX STi 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2008 Subaru Impreza WRX 2.5L H4 Gas All Models Street Legal in All US States: No |
| 2008 Subaru Impreza WRX STi 2.5L H4 Gas All Models Street Legal in All US States: No |