You will be hooked after them two mods yes better power and gas milage. You just wont see the mileage because your going to love the sound of the car in upper rpm range.
NW Posse#10 Team Duratec#69
F2 Header, Steath Exhaust, CAI, AR103, Tuned by Randy Fswerks, DGR Coil Overs
DOMINANT front and rear LCA DOMINANT endlinks Massive toe and camber arms