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FREE SHIPPING ON ORDERS OVER $25!
Order before Friday Dec 13 and select 2-day shipping to get delivery by Dec 24
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).
Increased horsepower
Tuned and dyno-tested to improve acceleration and engine sound
Low restriction aluminum tubing
Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
Washable and reusable oil-free filter media
Replacement Filter
21-2038DK
Air Filter Color
Red
Air Filter Material
Non-woven Synthetic
Air Filter Outlet Shape
Round
Clamps Included
5
Clamp Material
Steel
Clamp Style
Regular
Couplers Included
1
Product Style
AEM Cold Air Intake System
Intake Pipe Color / Finish
Gunmetal Gray
Intake Pipe Material
Aluminum
CARB EO Number
D-670-15
Street Legal In All US States
Not legal for sale or use in California on any pollution controlled motor vehicle. NOTE: Some specific models and years may be legal in CA. Check the CARB status on your vehicle in the applications listings.
