even if you installed a cai were would you put it? in my experience its better to put those lower farther away from the engine. in a car i can see em workin but if you plan on doin any off roading i think the factory is definitely the way to go. haha and if you want something that sounds good just get a cherry bomb

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2007 xlt ranger reg cab, fll width Ford 8.8 rear, Dana 44 front, 5.13 gears, 37" toyos, pioneer double din deck, rockford fosgate speakers all the way around, custom mossy oak interior, cobra cb, custom stero in tool box(has its own power supply), Diablo intune programmed....Bunch of other stuff.