K&N Air Intake 57 Series for 2006-2008 4.6L Explorer (57-2573)

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Adding an aftermarket intake system to your Ford Explorer is one of the easiest and most cost effective ways to increase you Explorer's horsepower and torque. A 57 series K&N intake system will allow your engine to breathe easier resulting in more power. Better airflow means increased performance and better fuel economy. Another important feature of these intakes is their washable filter. This allows the filter to be used over and over again without having to buy a new one every 15,000 miles which is necessary when using paper filters. If your looking to add power to your Explorer, and get better gas mileage, a K&N 57 series intake is for you.

57 Series Intake Benefits

  • Increase in horsepower and torque
  • Better throttle response
  • Reusable filter. No more buying paper air filters
  • Increase in fuel economy
  • Custom, aggressive look in your engine bay
  • Deepens your exhaust tone
  • One Million mile K&N warranty


Dyno Chart

2006 Explorer 4.6L



Car Fitments Model Estimated Horsepower Gain Replacement Filter Weight Length Width Height
2006-2008 Explorer 4.6L 57-2573 11 Hp @ 4500 RPM RF-1048 10.8 lbs. 24 in. 17 in. 15.5 in.

Installation Guide

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