Reviewed By rex k (spring, TX) Reviewed for a 2009 Ford F-350 —1/18/2012 8:55 AM
Seems to work well in my f350 6.4.
Reviewed By Charles M (Newberry, IN) Reviewed for a 2006 Ford F-350 —12/28/2016 8:36 PM
Increased my fuel milage about 1 mpg. Would give it 5 stars if it hadn't been a pita to install,which is ford's problem not the filters. Overall happy with the purchace as I didn't want to drop $300 for a complete cold air intake.