I have a 05 f150 fx4. I got magnaflow cat-back, Airaid CAI, Edge Evo(PHP sending Gryphon upgrade soon). What else should I do? I'm thinking headers and ram air, but I don't know. I want to gain more torque and HP, but not at fuel mileage expense. Everything on it so far adds power when I want to pass someone on the highway and doesn't hurt me when I don't uses it. What about electric Fans?