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AIRAID 403-278

Performance Air Intake System
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4.7 out of 5 stars 3 Customer Reviews
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List Price: $483.49
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$386.79 USD


The AIRAID 403-278 fits some Ford F250 Super Duty, Ford F350 Super Duty, and Ford F450 Super Duty models. See vehicle applications for details.
The AIRAID MXP Air Intake System represents the ultimate in AIRAID cold air induction systems and provides higher levels of horsepower and acceleration gains for high-performance gas and diesel vehicles. Some AIRAID MXP Air Intakes start with a replacement one-piece roto-molded air box that addresses all the shortcomings of the restrictive factory design. Housed inside the air box is an AIRAID premium air filter for outstanding air flow and filtration. Air is directed through a new air intake tube constructed of cross-linked, high-density polyethylene that is designed using extensive computer modeling to maintain proper mass air flow readings and calibration. Many MXP Air Intake Systems have a built-in velocity stack, which further promotes airflow. What this all means is that you get a simple-to-install, yet extremely sophisticated system to increase air flow while maintaining proper air-to-fuel ratios, thereby eliminating the need for recalibration after installation. Just bolt it on and go! These air intake systems are backed by AIRAID’s No Hassle Lifetime Warranty. Some AIRAID 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 product's vehicle applications to determine the legal status for each vehicle.

[More Information on AIRAID MXP Air Intake Systems]
  • Superior horsepower and acceleration gains
  • Replaces stock intake tubing, air filter and air box (where applicable)
  • Easy to install using commonly available tools
  • High airflow premium air filter
  • Washable and reusable air filter media
  • No Hassle Lifetime Warranty

Part 403-278 Product Specifications

Replacement Filter703-469
Air Filter ColorBlue
Air Filter MaterialNon-woven Synthetic
Clamps Included4
Clamp MaterialStainless Steel
Clamp StyleWorm Gear
Couplers Included2
Product StyleAIRAID Intake Kit
Air Filter Outlet ShapeRound
Intake Pipe Color / FinishBlack
Intake Pipe MaterialHigh-Density Cross-Linked Polyethylene
CARB EO NumberD-609-19
Street Legal In All US StatesYes
TUV Approved (Europe)No
Weight12.3 lb (5.6 kg)
Product Box Height14.8 in (376 mm)
Product Box Length20.5 in (521 mm)
Product Box Width20.2 in (513 mm)
Mounting Hardware IncludedYes
WarrantyNo-Hassle Lifetime Limited
WARNING: Cancer and reproductive

Product Reviews

April 12, 2019 - Part 403-278
Great product and simple to install. Shipping was very fast.

Carl Stewart
Leesburg, Florida
July 24, 2017 - Part 403-278
While I am enjoying the product, it is not without a challenge. Upon receipt of my air intake system, I removed every item from its shipping container including all of the various parts. Considering I took time to prepare for the installation including my garage, tools, etc., I was not pleased to find that the larger plastic loom was not enclosed and the wrench - tool was not the correct size. Considering this a weekend I had to improvise to complete the job and begin using the product. The product is and does as you claim. This is the second time I have purchased this type of product from your company. I only hope that your quality control will strive to be 100% accurate as anything less does not make for a happy customer.

Les Stacey
Bloomfield, Connecticut
June 28, 2016 - Part 403-278
This new filter allows better airflow into my 6.7 Diesel engine. I feel more power with this product.

Richard N Larsen
Hanson, Massachusetts
   Review part 403-278