Has anyone used the GForce performance chip kit for their XF. Mine is 2006 limited roadster. Does it really increase the HP (up to 60) and increase the fuel mileage 4-7 mpg.

I might try this if any of you say it's good and does what GGorce says.

Where is this Eurocharge company located that I read about on the forum?

Appreciate you replies and coments.