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Part:   21-518B

AEM 21-518B Cold Air Intake

AEM Cold Air Intake System
  • Increased horsepower
  • Tuned and dyno-tested to improve acceleration and engine sound
  • 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

The AEM 21-518B Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle’s restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Honda Fit models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is relocated to the driver-side wheel well which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable blue powder coated finish. This air intake system was developed to accommodate the engine’s factory emissions control devices including the inlet air temperature sensor and a replacement silicone breather hose. The tapered 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 21-518B vehicle applications to determine the legal status for each vehicle.

[More Information on AEM Cold Air Intake Systems]
Specifications AEM 21-518B Product Specifications
Air Filter ColorRed
Air Filter Height5.25 in (133 mm)
Air Filter Large End Diameter6 in (152 mm)
Air Filter MaterialNon-woven Synthetic
Air Filter Outlet ShapeRound
CARB EO NumberD-670-15
Clamp MaterialSteel
Clamp StyleRegular
Clamps Included7
Intake Pipe Color / FinishBlue
Intake Pipe MaterialAluminum
Product Box Height14.94 in (379 mm)
Product Box Length22.2 in (564 mm)
Product Box Width14.5 in (368 mm)
Product StyleAEM Cold Air Intake System
Replacement Filter21-202DK
Street Legal In All US StatesYes
TUV Approved (Europe)No
Weight7 lb (3.2 kg)