2001 - 2006 K&N Duramax Diesel Replacement Air Filter

K&N’s lifetime replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration!

K&N

2001 - 2004 K&N Duramax Diesel Performance Intake Kit

14.39 HP @ 2750 RPM Estimated Horsepower Gain! The Generation II FIPK® is K&N's ultimate performance product!!!

2001 - 2004 K&N Duramax Diesel Performance Intake Kit

12.55 HP @ 3246 RPM Estimated Horsepower Gain. Built for performance and show utilizing the highest quality components!

2001 - 2004 K&N Duramax Diesel Performance Intake Kit

12.55 HP @ 3246 RPM Estimated Horsepower Gain. Built for performance and show utilizing the highest quality components!