AEM COLD AIR INTAKE SYSTEM For 18-22 Honda Accord 1.5L - 21-854C

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This Performance Air Intake System allows your engine to breath more air compared to the restrictive factory air intake housing. It is designed, tuned, and dyno-tested to produce more horsepower and torque. The cone-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). A custom shaped heat shield with edge trim lining is included to keep engine bay heat from the air intake. The air intake tube is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish. This 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 vehicle applications to determine the legal status for each vehicle.

NOT CARB-APPROVED. ILLEGAL TO USE OR INSTALL IN CALIFORNIA. IF YOU LIVE IN CA, WE CANNOT SHIP YOU THIS ITEM AND YOU WILL BE CHARGED A 10% CANCELLATION FEE IF YOU ORDER. PLEASE LOOK FOR OTHER PRODUCTS WITH CARB APPROVAL.

  • Increased horsepower
  • Heat shield with edge trim lining
  • Low restriction aluminum tubing
  • Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
  • Washable and reusable oil-free filter media
  • AEM Lifetime Limited Warranty

Installation PDF

Installation Instruction Sheet

Dyno Chart - 2018 Honda Accord 1.5L - 8HP Increase


Estimated Horsepower Gain 8 HP @ 6000 RPM
Replacement Filter 21-201DK
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
CARB EO Number D-670-26
Street Legal In All US States See Vehicle Applications
TUV Approved (Europe) No
Weight 9.1 lb (4.1 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)
Mounting Hardware Included Yes
Warranty Limited Lifetime


Supported Vehicles

2022 Honda Accord 1.5L L4 Gas

All Models

Street Legal in All US States: No

2021 Honda Accord 1.5L L4 Gas

All Models

Street Legal in All US States: Yes

CARB EO Number:

D-670-26

2020 Honda Accord 1.5L L4 Gas

All Models

Street Legal in All US States: Yes

CARB EO Number:

D-670-26

2019 Honda Accord 1.5L L4 Gas

All Models

Street Legal in All US States: Yes

CARB EO Number:

D-670-26

2018 Honda Accord 1.5L L4 Gas

All Models

Street Legal in All US States: Yes

CARB EO Number:

D-670-26

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