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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
AEM 06-07 WRX/ 06 STi Silver Cold Air IntakeThe AEM 21 477C 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 Impreza WRX WRX STI, Forester Turbo and SAAB 9 2X models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The
The AEM 21-477C 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 Impreza WRX/WRX STI, Forester Turbo and SAAB 9-2X 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 relocated to the passenger-side wheel well which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable gunmetal gray 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 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 21-477C vehicle applications to determine the legal status for each vehicle.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006 | Saab | 9-2X | 2.5i |
| 2006 | Saab | 9-2X | Aero |
| 2004-2005 | Subaru | Forester | XT |
| 2005 | Subaru | Forester | XT Premium |
| 2006-2007 | Subaru | Impreza | WRX |
| 2006-2007 | Subaru | Impreza | WRX Limited |
| 2004-2007 | Subaru | Impreza | WRX STI |
| 2007 | Subaru | Impreza | WRX STI Limited |
| 2006-2007 | Subaru | Impreza | WRX TR |
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4.7 ★★★★★
Based on 1484 reviews
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Product Reviews
★★★★★ 5
WOnderful book!
Format: Hardcover
I love this book ~ author provides a very intriguing process he has gone through and continues to go through to learn to understand and communicate with animals, particularly the wild ones. Very intriguing with down to earth, practical suggestions for how the reader can do the same. Really wonderful!
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Reviewed in the United States on January 4, 2025
★★★★★ 5
Great trivia, perfect gift for history lovers!
Format: Paperback
Great range of trivia questions! Simple enough to enjoy but challenging enough to have fun. Super fun to read through with a friend or group, we actually used this as part of a game night and had a blast!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2026
★★★★★ 5
Educational & Interesting Bathroom Reader
Format: Paperback
I bought this for my husband for Christmas given that he loves history. I figured it’d be a hit as a bathroom reader… I was right and it’s become a fixture right next to the toilet paper! He likes that it challenges him to think. Now there’s no need to take his phone into the bathroom!
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Reviewed in the United States on March 25, 2026
★★★★★ 5
Great trivia!
Format: Paperback
This is a great read! Especially for history buffs. Great to get yourself ready for trivia for scholastic bowl! Highly recommend!
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Reviewed in the United States on January 1, 2026
★★★★★ 4
BCE? No, it is BC!
Format: Paperback
I love history; there is a lot in this book I did not know. It is definitely a challenge and a great way to learn. I took off one star (considered taking off two) because the author uses the non-Christian term of BCE. I HATE seeing that instead of what it really is BC - before Christ! I wonder if he is an atheist.
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Reviewed in the United States on December 27, 2025
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