Description
The AEM 21-735WR 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 Subaru WRX STI 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 located in the original air box space and is protected by a heat shield which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable textured red powder coated finish. This air intake system was developed to accommodate the engine’s factory emissions control devices including the mass air flow sensor. 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 easy to install with commonly available tools and it 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 21-735WR vehicle applications to determine the legal status for each vehicle.
Resources
Installation Instructions
Resources
Installation Instructions
Specifications:
| Air Box Included | No |
| Air Filter Color | Red |
| Air Filter Material | Non-woven Synthetic |
| Air Filter Outlet Shape | Round |
| Air Filter Washable | Yes |
| CARB EO Number | D-670-24 |
| Clamp Color/Finish | Natural |
| Clamp Material | Stainless Steel |
| Clamp Style | Regular |
| Clamps Included | 3 |
| Coupler Color/Finish | Not Applicable |
| Couplers Included | None |
| Description_DEF | Engine Cold Air Intake Performance Kit |
| Description_DES | Cold Air Intake System |
| Description_EXT | AEM’s Performance Cold Air Intake Systems are 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_INV | Cold Air Intake System |
| Description_MKT | The AEM 21-735WR 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 Subaru WRX STI 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 located in the original air box space and is protected by a heat shield which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable textured red powder coated finish. This air intake system was developed to accommodate the engine’s factory emissions control devices including the mass air flow sensor. 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 easy to install with commonly available tools and it 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 21-735WR vehicle applications to determine the legal status for each vehicle. |
| Description_SHO | Cold Air Intake Syst |
| Estimated Horsepower Gain | 32 HP @ 5400 RPM |
| height | 12.25 |
| Horse Power Increase | 32 HP |
| Intake Pipe Color / Finish | Wrinkle Red |
| Intake Pipe Material | Aluminum |
| Intake Pipe Ports | All intake tube ports needed for the specified applications are included |
| length | 20.25 |
| Mass Air Flow Sensor Adapter Included | Yes |
| Mounting Hardware Included | Yes |
| Oil Included | No |
| Package Material | Paperboard |
| Package Type | Box |
| Product Style | AEM Cold Air Intake System |
| Prop 65 (C, R or CR) | CR |
| Prop 65 – Short Label | WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov |
| Prop 65 Warning Label | https://www.knfilters.com/images/l/prop65.jpg |
| Prop 65 Yes/No | Yes |
| Replacement Filter | 21-2029DK |
| RPM | 5400 |
| Street Legal In All US States | See Vehicle Applications |
| Title | AEM AEM-21-735WR Cold Air Intake System |
| TUV Approved (Europe) | No |
| Warranty | Limited Lifetime |
| weight | 8.86 |
| weight | 8.9 lb (4 kg) |
| width | 12.25 |
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