K&N® 77-2529KP - 77 Series High-Flow Performance Air Intake Kit (4.0L F/I)

K&N Performance Air Intake Systems
K&N® - 77 Series High-Flow Performance Air Intake Kit - PolishedK&N® - 77 Series High-Flow Performance Air Intake Kit - PolishedK&N®- Street LegalK&N® - 77 Series High-Flow Performance Air Intake Kit Installation InstructionsK&N® - 77 Series High-Flow Performance Air Intake Kit Dyno ChartK&N® - Cleaning GuideK&N® - Done In House 602x420K&N Authorized Dealer
0 (0 reviews)
Availability: In Stock (12)
Usually ships within 24 to 48 hours
Vehicle Specific
Fits Following Model(s):
  • Please Select Vehicle Below
Have a Question? 800.505.3274
Ask a Specialist Live Chat
Lowest Prices
Price match guarantee
Easy Returns
Quick & Hassle Free
In-House Experts
We know our products
Guaranteed Fitment
Always the correct part
Select Vehicle
Select Vehicle Fitment
Originally $353.74
Add To Cart
Select VehicleSelected Vehicle
Product Details

77 Series High-Flow Performance Air Intake Kit (77-2529KP) by K&N®, Polished. This intake kit is designed for the larger engines typically found in trucks and SUVs. It replaces the factory air intake system with a free flowing K&N air filter and custom designed air intake tube. Extensive dyno testing improved intake airflow and allows these big engines to develop even more torque and horsepower. The end result is better acceleration you can feel. Estimated Horsepower Gain: 5.32 HP - 5095 RPM.

K&N - F.A.Q. K&N - Air Filter Cleaning K&N - Warranty


  • Guaranteed to increase horsepower and improve acceleration
  • Custom designed and engineered for each application
  • Works with OEM computer system
  • Available in various finishes
  • Includes the world's best air filter, the K&N filter
  • Easy to install
  • Street legal in most States
  • Up to 100,000 miles between servicing
  • Million Mile limited warranty

The big "deep breathing" engine in your truck or SUV needs a 77 Series High-Flow Performance Air Intake Kit to unleash all of its power. The kit starts with an oversized conical high-flow K&N air filter, installed in place of the restrictive factory airbox. The large increase in filter area over the stock airbox filter results in a huge increase in airflow and a greater capacity to capture and hold dirt.

The increased airflow continues with a free-flowing mandrel-bent aluminum intake tube in place of the factory air path. The intake tube is available in several finishes. Most kits also include a heat shield that seals against the hood and isolates the filter from engine heat. The reduction in air intake temperature results in a cooler, denser air intake charge and even more horsepower. All components are mounted and connected with high quality materials such as steel, aluminum, silicon or reinforced nylon, to ensure long life.

K&N uses a dynamometer to design its air intake kits to make the most horsepower possible. But their power figures aren't based on just one vehicle, but rather an average of runs by a number of vehicles. This means repeatable numbers and horsepower claims you can count on.

Every 77 Series High-Flow Performance Air Intake Kit comes complete with everything necessary for installation, including comprehensive installation instructions. The K&N filter can go up to 100,000 miles before cleaning is required. And the K&N air filter is guaranteed for one million miles.

Brand: K&N       Part Number: 77-2529KP       UPC: 024844112385
paypal credit K&N Air Intake Systems

K&N® is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. The first K&N filter was conceived for racing over 40 years ago and a performance enthusiast mindset continues today throughout all levels of the company. K&N is the sales and brand leader for performance filters, including an extensive line of factory replacement filters and performance air intake kits. The company actively promotes the environmental, economical and performance advantages of long-life reusable cotton gauze filters.

Vehicle FitmentThis part is compatible with 13 vehicle(s)
Year Make Model Fitment Notes
2004 Ford Sport Trac    4.0L F/I
2003 Ford Explorer    Sport 4.0L F/I
2003 Ford Ranger    4.0L V6
2003 Ford Sport Trac    4.0L F/I
2003 Mazda B-Series    4.0L V6
2002 Ford Explorer    Sport 4.0L F/I
2002 Ford Ranger    4.0L V6
2002 Ford Sport Trac    4.0L F/I
2002 Mazda B-Series    4.0L V6
2001 Ford Explorer    4.0L F/I
2001 Ford Ranger    4.0L V6
2001 Ford Sport Trac    4.0L F/I
2001 Mazda B-Series    4.0L V6
Product Reviews (0)
Product Reviews (0)
More Accessories