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63-2591
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K&N 63-2591 Air Intake

63 Series Aircharger Kits > Performance Air Intake System
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   7 Customer Reviews
  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Easy to install, usually in 90 minutes or less
  • Free-flowing high density polyethylene tube
  • Replaces entire factory air intake system
  • Washable and reusable lifetime air filter
  • K&N Million Mile Limited Warranty
The K&N 63-2591 Air Intake fits some Ford F150 models. See vehicle applications link for details.
The K&N 63-2591 AirCharger air intake system replaces the restrictive factory air filter and air intake housing on specific Ford F150 models. K&N air intakes are designed to dramatically reduce air intake restriction as well as smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine’s RPM range. The air intake comes with a chrome topped K&N high-flow air filter and a heat shield that installs into the lower air box space. Air is directed through an aerodynamically engineered intake tube into the engine’s throttle body for a guaranteed power gain. The tube accommodates the factory EVAP vent line and crank case vent hose. The oversized cone shaped air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install, usually in 90 minutes or less using your vehicle’s existing factory mounting points. The tools needed are a screwdriver and several wrenches.

More Info on K&N AirCharger High Performance Air Intakes

Product Specifications

Estimated Horsepower Gain12.74 HP @ 4555 RPM
Replacement FilterRC-5173
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
Clamps Included5
Clamp MaterialStainless Steel
Clamp StyleRegular
Couplers Included1
Product Style63 Series Aircharger Kits
Intake Pipe Color / FinishBlack
Intake Pipe MaterialHigh-Density Polyethylene
Street Legal In All US States No
TUV Approved (Europe)No
Weight11.2 lb (5.1 kg)
Product Box Height10.5 in (267 mm)
Product Box Length35.5 in (902 mm)
Product Box Width13.25 in (337 mm)
California RestrictedNot legal for sale or use in California
Mounting Hardware IncludedYes
Warranty1,000,000 Miles/10 Year
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

K&N 63-2591 Air Intake Product Reviews

Tuesday, April 3, 2018 - Part 63-2591
I have used my K&N performance air intake for a short time and according to the computer in my new F150 I have gained about 1.5 miles per gallon. I have used K&N products for 40 years and have had great success with the products. Thank You.

Daniel Franklin
Davenport, Iowa
Friday, November 10, 2017 - Part 63-2591
Love it. Super easy to install. Great sound on my truck and increase in MPG.

Al DiRisio
Columbia, South Carolina
Friday, October 20, 2017 - Part 63-2591
Satisfied with the product even though the first order was missing a piece we called and they sent it right away.

Itza Reyna
Weslaco, Texas