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Air and Fuel› Air Cleaners, Filters, Intakes and Components

AFM

Dryflow Cold Air Intake System

$419.99 $369.99 Save $50.00

SKU: AEM21-478WR

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The AEM 21-478WR is a performance cold air intake system designed to replace your vehicle's restrictive factory air filter and air intake housing. It is precision-tuned and dyno-tested to fit specific Subaru WRX, WRX STI, Impreza WRX, and Impreza WRX STI models. The system features an oversized AEM Dryflow synthetic washable air filter for outstanding airflow, filtration, and performance, protected by a heat shield to reduce intake air temperature and increase horsepower.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandAFM
Part NumberAEM21-478WR
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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