SKU: 60874668614

K&N 57-2531 FIPK AIR INTAKE SYSTEM

$180.00 $200.00
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

K&N 57-2531 FIPK AIR INTAKE SYSTEMK&N FIPK Air Intake System 57 2531 Ford F 250 F 350 Upgrade your factory intake system with the K&N 57 2531 FIPK Air Intake, engineered to increase horsepower, improve throttle response, and enhance engine sound while maintaining full street legality. This system replaces the entire restrictive factory air intake assembly, allowing your engine to breathe more efficiently across the entire RPM range. Key Benefits Guaranteed Horsepower Increase Reduced

 

K&N FIPK Air Intake System – 57-2531

Ford F-250 / F-350

Upgrade your factory intake system with the K&N 57-2531 FIPK Air Intake, engineered to increase horsepower, improve throttle response, and enhance engine sound while maintaining full street legality.

This system replaces the entire restrictive factory air intake assembly, allowing your engine to breathe more efficiently across the entire RPM range.

🔥 Key Benefits

  • Guaranteed Horsepower Increase
    Reduced intake restriction delivers measurable power gains

  • Improved Throttle Response & Engine Sound
    Smoother, straighter airflow improves drivability and acceleration

  • Free-Flow Intake Tube
    High-density polyethylene tube is aerodynamically engineered for maximum airflow

  • Washable & Reusable Air Filter
    Oversized cone-style K&N filter lasts up to 100,000 miles between services (driving conditions dependent)

  • Heat Shield Design
    Installs into the factory lower air cleaner assembly to help isolate intake air from engine heat

  • Retains Factory Sensors
    Accommodates the OEM air temperature sensor and air filter restriction gauge

🛠️ Installation & Fitment

  • Easy Bolt-On Installation
    Uses factory mounting points
    Typical install time: 90 minutes or less

  • Basic Tools Required
    Screwdriver, ratchet set, and common wrenches

  • Street Legal in All 50 States

📦 What’s Included

  • K&N high-flow reusable air filter

  • Intake tube

  • Heat shield

  • All necessary hardware and installation instructions

🛡️ Warranty

  • K&N Million Mile Limited Warranty

🚗 Fitment

  • Fits select Ford F-250 and F-350 models

  • Refer to vehicle application guide for exact compatibility

If you’re looking to unlock more airflow, stronger throttle response, and long-term reliability without sacrificing legality or drivability, the K&N 57-2531 FIPK Intake System is a proven upgrade for your Ford Super Duty.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 60874668614

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4.2 ★★★★★
Based on 7 reviews
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Product Reviews
T
Verified Purchase
Tharin
Los Angeles, US
★★★★★ 5
BUY THIS ONE!
Model: NewSLS50_52
This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ. Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that. Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2025
H
Verified Purchase
Harvey
Lake Worth, US
★★★★★ 5
Good stuff, but watch the temp
Model: NewSLS50_52
I used this in my single cab pickup truck (89 ford.) It only took half the box (10 sheets or 25 square feet) to do the floors, but I bought the big box because I plan to do the doors, back wall, and maybe the roof as well. One thing I learned is that the temperature matters when you’re doing the installation. It was around 55F when I started in the evening, and when it dipped down into the 40s the sheets would not stick to the metal, and were hard to compress with the roller. That’s why I ended up only doing the floors and not any vertical surfaces; i will have to wait for a nice hot day. The other thing is that the foil layer on top is razor sharp at the edges, definitely wear gloves! I didn’t notice until after but I have little papercuts all over my fingers. Aside from those things, the install was easy and straightforward. The sheets cut easily with scissors, and any goo that ends up on your hands or scissors can be cleaned up with acetone (nail polish remover), or lacquer thinner. I would use this stuff again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 16, 2023
L
Verified Purchase
Lyrah
Grantham, US
★★★★★ 5
Very efficient!
Model: NewSLS50_52
Amazing the difference it makes on dumping the noise. Very easy to install. Pell and stick literally! Great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
J
Verified Purchase
James C. Higgins
San Leandro, US
★★★★★ 5
Polyglo mit
Exact polyglo applicator mit. Works perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
C
Verified Purchase
CSnc
Omaha, US
★★★★★ 5
The Mitt is it.
I ordered the applicator because the Poli Glow Kit on hand was ordered and received a couple of years ago and it had the old chamois covered rectangular applicator. I could tell by looking that the mitt was the better solution. Also, the mitt was described well in an online video, so using it was easy to learn. The results were fantastic and I am very pleased with it. The only thing I would change is to add some more information on how often to replenish the mitt and with how much Poli Glow liquid. I wasn't sure if I was skimping or wasting the material. As I approached halfway, I couldn't tell if I was going to run out before I finished, so I tried to be as frugal as possible. Turns out, I had liquid left over.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2016

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