AEM 08-11 WRX/STi Wrinkle Red Cold Air Intake - 21-478WR
Upgrade your Subaru's performance with the AEM 21-478WR Cold Air Intake System. Designed for specific Subaru models, this system boosts horsepower and torque by replacing the restrictive factory air filter and intake housing. Key features include:
- Estimated Horsepower Gain: 36 HP @ 5300 RPM
- Washable, oil-free synthetic air filter
- Durable mandrel-bent aluminum tubing
- Heat shield to reduce intake air temperature
- Easy installation with common tools
- Limited Lifetime Warranty
The AEM 21-478WR 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, WRX STI, Impreza WRX and Impreza 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 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 21-478WR vehicle applications to determine the legal status for each vehicle.
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.
Features
- Air Box Included: No
- Air Filter Color: Red
- Air Filter Height: 9.125 in (232 mm)
- Air Filter Large End Diameter: 6 in (152 mm)
- Air Filter Material: Non-woven Synthetic
- Air Filter Outlet Length: 2.75 in (70 mm)
- Air Filter Outlet Shape: Round
- Air Filter Outlet Width: 2.75 in (70 mm)
- Air Filter Washable: Yes
- CARB EO Number: D-670-21
- Clamp Color/Finish: Natural
- Clamp Material: Steel
- Clamp Style: Regular
- Clamps Included: 3
- Coupler Color/Finish: Not Applicable
- Couplers Included: None
- Estimated Horsepower Gain: 36 HP @ 5300 RPM
- Horse Power Increase: 36 HP
- Intake Pipe Color / Finish: Wrinkle Red
- Intake Pipe Inlet Length: 19 in (483 mm)
- Intake Pipe Inlet Shape: Round
- Intake Pipe Inlet Width: 2.75 in (70 mm)
- Intake Pipe Material: Aluminum
- Intake Pipe Outlet Length: 19 in (483 mm)
- Intake Pipe Outlet Shape: Round
- Intake Pipe Outlet Width: 2.75 in (70 mm)
- Mass Air Flow Sensor Adapter Included: Mass Air Flow Sensor Adapter Included When Required
- Mounting Hardware Included: Yes
- Oil Included: No Filter Oil Required
- 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: 5300
- Street Legal In All US States: Yes
- Title: AEM AEM-21-478WR AEM Cold Air Intake System
- TUV Approved (Europe): No
- Warranty: Limited Lifetime
- Weight: 7.4 lb (3.3 kg)
Notes:
California Air Resources Board Exempt: Yes CARB EO: D-670-21 AEM - Metal Intake System Wrinkle Red (CAS)
| Brand | AEM |
|---|---|
| upc | 840879019266 |