Review on 🚀 K&N Cold Air Intake Kit: Enhanced Performance and Increased Horsepower Assured: Compatible with 2018-2019 FORD Expedition, F150, F150 Raptor, and LINCOLN Navigator, Model 57-2601 by Sean Bouchard

I bought CAI and installed it in Ford. After about 1 month I got warnings and the check engine light went on and off intermittently. After looking at the Ford forum and going to the Auto Zone to verify the warning code as P04db, I saw that other Raptor/Eco Boost owners were having the same issue. It was only when I contacted the Revain dealer and he suggested I call K&N directly that I saw that he had a "solution" to this problem. I should be getting this part next week and if it fixes the problem I'll be increasing my overall rating, but it's a little frustrating that K&N seems to know about the problem but doesn't include the part for Raptor/Eco Boost owners to start with With!