Reviewed By Roger T (Fernandina Beach, FL) Reviewed for a 2001 Ford Excursion —9/29/2007 7:17 AM
I installed the bully dog-6 position chip in a 2001 excursion 4x4. I'm getting about 4 mpg more under normal driving conditions. 16 city and 21 highway. The truck will get up and go now.