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21-836C AEM Cold Air Intake System

$299.99USD
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SKU
AEM-21-836C
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C.A.S. SUBARU IMPREZA WRX STI-H4-2.5L F/I; 2018
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 Gain22.1 HP @ 6217 RPM
Replacement Filter21-2157D
Air Filter ColorRed
Air Filter MaterialNon-woven Synthetic
Air Filter Outlet ShapeRound
Clamps Included3
Clamp MaterialStainless Steel
Clamp StyleWorm Gear
Couplers Included1
Product StyleAEM Cold Air Intake System
Intake Pipe Color / FinishGunmetal Gray
Intake Pipe MaterialAluminum
Street Legal In All US States No
TUV Approved (Europe)No
Weight10 lb (4.5 kg)
Product Box Height12.25 in (311 mm)
Product Box Length20.25 in (514 mm)
Product Box Width12.25 in (311 mm)
California RestrictedNot legal for sale or use in California
Mounting Hardware IncludedNot Required
WarrantyLimited Lifetime
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AEM Products

Engineered to outperform

Air Intakes

Air Intake Systems

Custom-engineered tubes deliver better airflow than you get with a stock intake. More air means better performance.

Air Filters

Air Filters

Using cotton gauze instead of typical folded paper, our filters increase airflow while providing excellent engine protection.

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