Hey guys as the title implies has anyone tried this for the 97-03 trucks? I have noticed that the fuel economy difference is pretty big between the 2 5.4s. So has anyone does this? If so how does it feel in a lighter truck? What kind of mileage are u getting? If not what would be needed to get this job done??

 

do a search, 01roush is in the middle of this exact swap right now