Reviewed By Elias G (Santa Rosa, CA) Reviewed for a 2012 Lincoln Navigator —11/22/2016 6:11 AM
Awesome! I felt the difference immediately! Great buy and sounds good as well. Not sure exactly on the increase of MPG, but I did not lose any MPG.
Reviewed By James J (Laurel, MD) Reviewed for a 1999 Lincoln Navigator —9/3/2007 4:41 PM
I installed this kit on my 5.4L, 99' Lincoln Navigator. I immediately noticed an improvement in my gas mileage...approximaely 2-3mpg better. I also noticed better performance with towing...the engine breathes better and sounds GREAT TOO.!!