Cold Air Intake System

In stock
The AEM 21-820DS is an innovatively designed intake system to completely replace the restrictive air filter and airbox of some Infiniti QX30 models. The airbox has been crafted with premium materials and designed with 2 air scoops that feed from factory vent locations. It is aerodynamically engineered for better airflow, heat resistance, and improved aesthetics under the hood. The ECU is relocated underneath the airbox where a large vent keeps it cool. To clear the hood stand we incorporate a channel groove for a factory look on the air box. The AEM logo is showcased in a transparent badge, which also serves as a window to the filter so you know when it is time to have it serviced. The 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). The air intake system is backed by AEM's Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the 21-785DS vehicle applications to determine the legal status for each vehicle.
  • Designed to increase horsepower
  • Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
  • Washable and reusable oil-free filter media
  • Transparent AEM logo on the airbox cover
  • Backed by AEM Limited Lifetime Warranty
  • Unique air box design
Estimated Horsepower Gain25 HP @ 5000 RPM
Replacement Filter21-1015DK
Air Filter ColorRed
Air Filter MaterialNon-woven Synthetic
Air Filter Outlet ShapeRound
Clamps IncludedNo Clamps Required
Clamp MaterialNo Clamps Required
Clamp StyleNo Clamps Required
Couplers IncludedNone
Product StyleAEM Cold Air Intake System
Intake Pipe Color / FinishNone
Intake Pipe MaterialNot Applicable
Street Legal In All US States No
TUV Approved (Europe)No
Weight12.5 lb (5.7 kg)
Product Box Height9.81 in (249 mm)
Product Box Length36.31 in (922 mm)
Product Box Width22.81 in (579 mm)
California RestrictedNot legal for sale or use in California
Mounting Hardware IncludedYes
WarrantyLimited Lifetime
Cross References
Mishimoto MMAICLA4514BK


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

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

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