Can one tune a 2015 GT for fuel economy instead of high performance?
Jan 13, 2015 #1 Kowalski New Member Joined Jan 13, 2015 Messages 3 Location Denver CO Can one tune a 2015 GT for fuel economy instead of high performance?
Jan 13, 2015 #2 cj428mach Well-Known Member Established Member Joined Sep 21, 2012 Messages 7,609 Location Kansas Yes but you'll spend more than you'd ever save in fuel economy savings.