Reviewed By Richard K (Lampasas, TX) Reviewed for a 2013 Ford F-150 —9/23/2017 6:57 AM
do not waste your money on plug-in tuner box ! my truck 44K has S&B cold air---3" cat back exhaust and now the F5. performance tune have awakened the little mule under the hood. keep your foot out of it and I'm getting 3--5 mpg ( 70-75 mph) what used to be 15--16 mpg happy-happy-happy !