Skip to product information
1 of 4

AEM Induction

AEM 21-836C 2018 Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake

AEM 21-836C 2018 Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake

SKU:AEM21-836C

Regular price $349.99 USD
Regular price Sale price $349.99 USD
Sale Sold out
Shipping calculated at checkout.

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. Some intakes are not legal for sale or use on any pollution controlled motor vehicle in California. See the product specifications for CARB status on each part for a specific vehicle.

  • Guaranteed to increase horsepower and torque
  • Mandrel-bent aluminum intake tube paired with an oversized dry air filter
  • Engineered to provide high airflow and exceptional filtration
  • Replaces factory air filter and intake tube
  • DRYFLOW® oil-free filter only requires cleaning every 100,000 miles under normal highway driving conditions
  • Typical installation can be completed in 90 minutes or less with simple hand tools
  • AEM® Lifetime Limited Warranty
  • Will not void vehicle warranty

Estimated Horsepower Gain 22.1 HP @ 6217 RPM
Replacement Filter 21-2157D
Air Filter Color Red
Air Filter Material Non-woven Synthetic
Air Filter Outlet Shape Round
Clamps Included 3
Clamp Material Stainless Steel
Clamp Style Worm Gear
Couplers Included 1
Product Style AEM Cold Air Intake System
Intake Pipe Color / Finish Gunmetal Gray
Intake Pipe Material Aluminum
Street Legal In All US States No
TUV Approved (Europe) No
Weight 10 lb (4.5 kg)
Product Box Height 12.25 in (311 mm)
Product Box Length 20.25 in (514 mm)
Product Box Width 12.25 in (311 mm)
California Restricted Not legal for sale or use in California
Mounting Hardware Included Not Required
Warranty Limited Lifetime
View full details