Free Shipping On Orders Over $75. Details

Talk to an F-150 Expert
Mon - Sun, 8:30 AM EST - 11:00 PM EST
Win $17,760 For Your Truck! Enter Now!

K&N Series 57 FIPK Cold Air Intake (04-08 4.6L F-150)

Market Price $372.59 You Save 13% ($48.60)
Starting At


FREE Shipping
  • Item T525661
  • MPN# 57-2557

Will this fit your Truck?

Ship to: ASHBURN - 20146
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • Improves Horsepower and Acceleration
    • High Density Polyethylene Intake Tube
    • Filters Out Harmful Contaminants
    • Filter is Washable and Reusable
    • No Computer Tune Required
    • Simple Bolt-On Installation
    • CARB EO Number: D-269-31, D-269-34 or D-269-37
    • Fits 2004-2008 4.6L F-150s
      Your New Powerhouse. Enjoy your new powerhouse of a truck after you install the K&N Series 57 FIPK cold air intake. It goes on fast and removes that inefficient paper filter for a smooth flowing cotton setup. You'll notice power boosts that make your truck more capable and fun to drive around. Add this setup to your pickup and you'll be towing more, driving faster and making the most of your ride before you know it.

      Tuning isn't Necessary. You don't have to tune to power up your truck and this kit proves it. There's no tuning requirement at all. In fact, it's fine to leave your truck stock and to slip on this intake. Do so and you'll enjoy the full benefits.

      Advanced Filtering Technology. This K&N intake system features as state-of-the-art filtering setup that's made to capture as much nasty particles as possible while enhancing your engine as well. The kit uses oily cotton that particles stick to. There are several layers sandwiched between aluminum mesh that captures just about everything quickly and efficiently. You'll be amazed at the performance of the set. It's also fully washable so you can keep using the same filter for hundreds of thousands of miles.

      Tough Construction. K&N builds with longevity in mind. This intake features a polyethylene tube that is insulated and heat resistant and wide enough to let air flow freely. It comes with stainless steel hardware and features premium aluminum and cotton filtering components that hold up well over time and are fully washable.

      Slip On Installation. Slip this intake onto your truck in record speed with this simple kit. You remove the old components and lock the new ones in with ease using the included bolts. That's all there is to it.

      Protection for a Lifetime. The K&N Million Mile Limited Warranty covers this kit.

      50 State Approval. No matter what state you live in, this intake will pass smog tests. That's because it's rated CARB EO Number: D-269-31, D-269-34 or D-269-37.

      Application. The K&N Series 57 FIPK Cold Air Intake System is specifically designed to fit the 2004-2008 F-150s powered by the 4.6L V8 engine.

      Note: Coupon codes cannot be applied to this product.

      Fitment: 2004 2005 2006 2007 2008 Details

      What's in the Box
      • (1) Filter
      • (1) Heat Shield
      • (1) Intake Tube
      • Hardware
      Installation Info
      Tech Specs
      Cold Air Intake Specifications
      Material: High Density Polyethylene Plastic Filter Placement: Engine Bay
      Finish: Black Computer Tune Required: No
      Estimated Horsepower & Torque Gains:
      Estimated 4.6L HP:
      7.84hp @ 4828rpm Estimated 4.6L Torque:
      7.48lbft @ 4828rpm
       Estimated 4.6L HP:
      8.48hp @ 4775rpm Estimated 4.6L Torque:
      9.32lbft @ 4775rpm
       Estimated 4.6L HP:
      9.88hp @ 4200rpm Estimated 4.6L Torque:
      12.35lbft @ 4200rpm
      Will it fit my F-150?

      People Who Bought This Item Also Bought

      Customer Photos (2) Submit Your Photo

      View All 2 Photos

      You Might Also Like

      Q & A

      No questions about this product yet.

      Ask the First Question

      More Products You Might Like

      Customer Reviews (5) Write a Review

      Overall Rating 4.6

      out of 5 stars

      Installation Time:Afternoon

      • Fit 4.333333 4.3

      • 5/5

        August 29, 2016

        Well worth the time spent!

        item arrived in perfect condition and is complete with all parts youll need and a few extra bits. Installation took me about 2 hours but I had to clean off some corrosion. instructions were clear but make sure you 100 understand what you're doing because the instructions are in black and white combined with an indepth instruction manual/parts list that are easy to get lost in. take your time, grab a friend(s) and take care of this install. once its on youll instantly notice a better sound and a increase in performance that youll feel on wide open throttle. well worth the money spent!


        Engine: 4.6L V8

        Helpful (3)

      • 4/5

        Installation Time: Afternoon

        February 28, 2017

        Second cold air kit

        I previously had a simple version with a filter and new air horn with the original air box remaining in place. It did well, but this is well worth the time and effort to get a better response and another 1 mpg increase for my HD edition F150. The kit moves the throttle body up off the intake and puts it on the curved riser in the kit. The overall assembly is fairly straight forward, if you lay out all the parts and remain organized. The growl on WOT is reminiscent of the old qudrajet carbs, I love it. There is a whistle through the filter around the 2000 rpm range. You get used to it. Overall, I am happy with the kit. It helps clean up the engine bay with less bulky items. I recommend it if you don't care about chrome flashy air tubes.


        Year: 2007 Submodel: Harley-Davidson Edition Engine: 5.4L V8

        Helpful (2)

      • 5/5

        October 11, 2016

        K N Intake

        Great part. Easy installation. Gave me f150 a little more hp and sounds awesome.


        Engine: 5.4L V8

        Helpful (2)

      • 5/5

        Installation Time: Less than 1 Hour

        August 26, 2017

        Great product

        Easy install, took a little over an hour. 1-2 miles per gallon better mileage, better sound. Had a little whistle when first installed, but went away after driving for about 2 hours. Totally satisfied with the purchase.


        Year: 2005 Engine: 5.4L V8

        Helpful (1)

      • 4/5

        Installation Time: Afternoon

        May 23, 2017

        Great product for my Triton but ran into a snag

        Everything about this particular cold air intake was top notch, except for the adapter that comes with it that relocates your throttle body. When I finished putting everything together and started my truck I was getting a god awful high pitch humming sound from right around the throttle body. Found out that the included gasket between the throttle body and the elbow adapter was causing a bad air leak because the rather thin plastic on the adapter begins to bend as soon as you put any torque to it at all. I ended up using some Permatex RTV silicone gasket maker on the top of the elbow between it and the throttle body, as well as between the elbow and the intake manifold. Once I did that and let it cure for 24 hours I was in business, no more leak. In addition where the throttle body is mated to the elbow I added some nuts to the back side of the bolt for extra strength as it did not come with any. In the end I was very happy with the new intake. Looks great in the engine compartment and opened up lots of space to access the motor. Truck seems to get up to speed a little quicker without any additional effort. If KandN can figure out a better way with the elbow so that there are no air leaks I would definitely have given it 5 stars.


        Year: 2005 Submodel: FX4 Engine: 5.4L V8

        Helpful (1)

      Related F-150 Categories