Reviewed By ERNEST C (GLENNALLEN, AK) Reviewed for a 2006 Ford F-350 —1/31/2019 10:34 AM
I purchased the SCT X4 for my 2006 F350. I mainly wanted more towing power and better fuel economy. I achieve both of these objectives. Initially I hooked the SCT X4 up to a computer to do the update, but found the wi-fi worked easier to update the programmer. I am happy with the results of using the SCT X4.