I agree with battlerattle. With the 4.10's, if you don't change your tire diameter from OE/stock, then mileage could be what the 2014 PW is trying to improve a bit on. But with a 4.56, being able to move up to some 37" tires just look badass and still wont hurt the fuel mileage too bad.
Total Chaos UCA's, Fox 2.0 IFP Coilovers and shocks, TTC-1223V variable rate coil springs.(Mods list)