Pay in installments of $51.76 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 30 - Aug 4
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
AEM 08-11 WRX/STi Wrinkle Red Cold Air IntakeThe 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
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.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011 | Subaru | Impreza | 2.5i |
| 2011 | Subaru | Impreza | 2.5i Premium |
| 2011 | Subaru | Impreza | Outback Sport |
| 2008-2014 | Subaru | Impreza | WRX |
| 2010-2014 | Subaru | Impreza | WRX Limited |
| 2009-2014 | Subaru | Impreza | WRX Premium |
| 2008-2014 | Subaru | Impreza | WRX STI |
| 2011-2014 | Subaru | Impreza | WRX STI Limited |
| 2010 | Subaru | Impreza | WRX STI Special Edition |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 8 reviews
Sort
Product Reviews
★★★★★ 5
Seriously good wipers
Size: 24" + 19"(Pair for Front Windshield Lock)
These things are awesome. I'd say they are on par with what comes on the car from factory.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
Limpia l
Size: 24" + 19"(Pair for Front Windshield Lock)
Excelentes en temporada de lluvia me han sido útiles
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
Great item
Size: 2.0L
This fit my car perfectly! It was was easy to install as well. Great price as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 5
Easy to install and great quality—perfect for my 2018 Civic
Size: 2.0L
I bought this for my 2018 Honda Civic, and it fits perfectly. It only takes a few minutes to install with just a few clips, and the process is simple. I am a woman and do it myself with no issues at all.
The filter feels sturdy and well made. The thickness and overall quality are excellent. I’ve seen people mention “ease of cleaning,” but I don’t clean mine. I just remove, vacuum the area and replace it when needed. That might be a bit much, but it’s affordable and straightforward.
I can’t say exactly how much it improves airflow or fuel mileage, but I consistently get over 40 miles per gallon in economy mode, so it’s clearly performing well. Overall, it’s a great product if you like handling basic car maintenance on your own.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2025
★★★★★ 5
Affordable and Reusable
Size: 2.0L
The engine filter was really affordable it cost less then $15. I bought this filter because it was recommended from a family friend. It fitted my honda civic perfectly. Replacing the filter was so easy to replace. Replacing or changing the filter was easy it only took a few mins to do. The quality of the filter is really good and it feels like its perfect for my car. I would buy this filter over and over again thats how great it is.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2024
recommand products
A-Arm - Lower for Tao Tao ATA135DU, TForce, New TForce
24.95
2024-25 Panini Prizm Prizms Fast Break Red Johnny Furphy #/100 #237
17.95
Clutch Primary Drive Gear with Inner Sleeve - 17 Teeth - 50cc-125cc
13.15
Hershey's Chocolate Bark 3.1oz - 12 Pack
49.99
KBS Coatings Frame Coater Kit - Motorcycle / ATV Size - Satin Black
29.95