Unfortunatly Ford flashed my truck to the VXCF9 strategy, but I have a SCT X3 and can run my truck with the VXCF4 tunes that I have, but what I would like to know is if it is safe for me to run the older tunes with my FICM being updated to the latesest strategy from Ford? I get better MPG with the VXCF4 tunes but would I see even more improvment if I had my FICM rolled back by PHP? I live in Idaho so it gets cold here in winter so I want good cold starts, but I also want MPG and power? Any thoughts on this would be helpful. Thanks...
