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AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake

AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake

AEM21-836C

⚠️ CARB Compliance: This product is not CARB-approved and cannot be shipped to California or other carb restricted states. See our Privacy Policy »
$299.99
$299.99
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AEM cold air intake systems are designed to increase horsepower and torque. The system includes an oversized AEM DRYFLOW synthetic washable air filter, engineered to provide outstanding airflow, filtration, and performance, and also features a mandrel-bent aluminum intake tube and high quality hardware. The oversized, conical filter design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect intake air from the high temperature of your engine bay, and the factory fresh air duct attaches to the heat shield. The entire system can typically be installed in less than 90 minutes.
Installation Instructions
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This Part Fits:

Year Make Model Submodel
2018 Subaru WRX STI Base
2018 Subaru WRX STI Limited
2018 Subaru WRX STI Type RA
MPN: 21-836C
⚠️ Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Learn more »
AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake

$299.99

FAQ

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Most orders ship in 1–3 days, but some items may take longer due to demand and manufacturing delays. For urgent orders, please contact us to confirm stock before purchasing.

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We’re happy to price match any legitimate listing from an authorized dealer, as long as the item is in stock and the price is current. We cannot match outdated or incorrect discounts based on old MSRP, since those prices are often errors the competitor cannot honor.