Reviewed By Richard D (Campbellsport, WI) Reviewed for a 1997 Ford Expedition —4/25/2009 6:49 AM
Easy to install about 20 minutes. More power and better gas mileage is noticed.
Reviewed By John P (Galt, CA) Reviewed for a 2003 Ford Expedition —5/12/2010 7:29 AM
The spacer was simple to install. the instructions could provide a simple drawing for the very inexperienced. It does not whistle as I drive (I read this from another review). I have not noticed a significant amount of power. The on board computer averages fuel consumption while on the freeway cursing at 1999 RPM's in overdrive the average went from 17 MPG to 19 MPG, ( it could have been great tail wind). I have only had it installed a week now and have driven 300 miles.. So far it seems to be a good product. John