I own a 2003 F-150 5.4 Supercrew Lariat(2 wheel drive). I just purchased a superchip tuner. What can I expect ? (performance/gas milage/etc..) Looked around this site a little but have not seen to many details. Any input would be great. ( I recently put 18" tires & wheels on this truck). Thanks.

 

do site search for "1715" and read all you want.