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AIRAID 400-239-1

Performance Air Intake System
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List Price: $345.49
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$276.39 USD


The AIRAID 400-239-1 fits some Ford F150, Ford F150 SVT Raptor, Ford F250 Super Duty, and Ford F350 Super Duty models. See vehicle applications for details.
The AIRAID Air Box System is engineered to give your engine larger amounts of cooler air to produce more horsepower and torque. The intake system retains the original location of the air filter but delivers a big boost with the addition of a huge open-element air inlet protected by Cold Air Dam panels that help to provide a steady, free-flowing supply of cooler outside air into your engine. The panels mount in the factory air box location and utilize any factory cold air inlet ducts that are present, while adding additional cold air passages to the filter. The panels also keep the filter isolated from the hot engine compartment air by sealing to the underside of the hood via blade-style weather stripping. This air box system connects to the factory air intake tube. The AIRAID premium air filter is washable and reusable, less restrictive than traditional paper, and assures superior filtration. The AIRAID Air Box System is easy to install with common hand tools. Some AIRAID air box systems are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the product's vehicle applications to determine the legal status for each vehicle.

[More Information on AIRAID Air Box Systems]
  • Increases horsepower and torque
  • Replaces stock air box and air filter
  • Cold Air Dam panels block out hot engine bay air
  • Easy to install using commonly available tools
  • High airflow premium air filter
  • Washable and reusable air filter media
  • No Hassle Lifetime Warranty

Part 400-239-1 Product Specifications

Replacement Filter720-478
Air Filter ColorRed
Air Filter MaterialCotton Gauze & Non-woven Synthetic
Clamps IncludedNo Clamps Included
Clamp MaterialStainless Steel
Clamp StyleWorm Gear
Couplers IncludedNone
Product StyleAIRAID Intake Kit
Air Filter Outlet ShapeRound
CARB EO NumberD-609-17
Street Legal In All US StatesYes
TUV Approved (Europe)No
Weight8.7 lb (3.9 kg)
Product Box Height12.5 in (318 mm)
Product Box Length16 in (406 mm)
Product Box Width15.7 in (399 mm)
Mounting Hardware IncludedYes
WarrantyNo-Hassle Lifetime Limited
WARNING: Cancer and reproductive

Product Reviews

May 11, 2016 - Part 400-239-1
Installed this kit on 2016 F250, 6.2L. Install was simple, about 30 min., and thats not being in a hurry at all. The noise difference is minimal, but does increase when you get into the pedal. Over a two week period of average driving, I have noticed an increase of about 1.5-2 mpg. Throttle response is better, and that was noticable instantly. I believe there was a slight increase in power, but I have not towed anything yet to be sure. All in all, it lets the engine get that extra bit of air that I felt it wanted everytime I drove up any type of long incline, and just seems to be better as far as regular driving. If you have one of these motors, you know what I mean when I say it sounded like it was starving for air...this helped. I was not looking for some high performance set up, just something to help...would buy again.

New York
   Review part 400-239-1