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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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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
4.3 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Easy to apply
Perfect for black plastic elements, in use for 10 years with many different cars, it’s become like now after applying, recommend very much:)
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Amazing -- every drop brings back to black
My JEEP looks amazing! Spent two days full detail job, in and out, getting ready to sell. Kinda wish I wasn't now. Excellent product, keep shaking as you go along, better results for the finish. Don't forget to buff to bring that shine. 😉
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Reviewed in the United States on June 26, 2025
★★★★★ 4
good stuff
works great! Wish it stayed black a little
longer but overall good
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Reviewed in the United States on June 4, 2024
★★★★★ 5
Great product
Fast, easy, and gives your car a refreshed almost like new look. if your black trims looking gray and tired, give it a quick spa day with this.
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Reviewed in the United States on April 16, 2025
★★★★★ 5
Just wipe this product on and forget it.
I have a 2015 F 150 Platinum with 91,000 miles on it. I use this product to keep the plastic surfaces black. I have unlimited carwash at a local car wash. I get the truck washed at least once a week or more if it gets dusty or dirty. I do keep the truck in a garage.
This product lasts for months per application.
The truck looks like new all the time.
I am very fussy how the truck looks. I buy 2 of these at a time. The shelf life as never failed me. This last order was purchased several years after the one before this one.
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Reviewed in the United States on August 13, 2023