Reviewed By Rob M (Aurora, CO) Reviewed for a 1999 Ford Expedition —1/23/2013 9:58 AM
This is great. easy to use and provides more power,torque, and milage.Installs in 15 min or less with instant results. I have also added the Spectra cold air system and have seen great gains 2 to 4 miles per gallon on regular gas with combined driving. The ease to change setting for more proformance is great. Very pleased.