upgrades

Hello all, and thank you admins for the quick turn around. It’s my first time owning a truck or really modifying a vehicle. 2019 Ranger, XLT 4x4 creeping up on 100k. Had it almost a year and been making fixes and modifications here and there. New main and cabin filter. New battery. New EGR DPFE...

Who wins lowest miles per gallon due to upgrades? Obviously the smiles per gallon go up! I have 30in ko2s, Injen exposed intake, Turbosmart blow off valve, removed the front two little air dams, didn’t replace the rubber around the tow hooks, etc. I get 13.9 mpg… but 139 smiles per gallon...

So stole this from an old Post n got wondering... What focus RS motor mods could bolt up to our motor with no issue (exhaust manifold, intake manifold, lightweight pullys, EGR delete)