hi guys i have a 2005 fx4 4.0 what do i need to do to get more ponys freed up from her. ive herd of putting a COLD AIR INTAKE SYSTERM ON HER, UNDER PULLIES, PERFOMANCE CHIPS, PLUGS WIRES, BIGER FUIL INJERCTERS, BETTER MASS AIR FLOW SENCER. what do u guys think about these mods? and i no theres gatta be more out there u can do to these moters? what r they? what have u guys dune for performans? its probly alot cheap just to go get a v8 huh?