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Roush's Roots S/C is the most complete kit out there. Its one of the more expensive if not the most expensive kit. However if you plan to upgrade for more power, the roush comes with the 42lb injectors and all the goodies. However stock it doesnt make the most power.
Whipple's Twinscrew 8PSI is probably the most power out of all the supercharger setups out of the box. However to upgrade it cost more then say the roush.
Magna is cheaper, but still a real good kit! Its only a 6PSI kit (I believe) but will still make alot of power.
There is also an expensive turbo kit from STS and a few cheaper centrifugal S/Cs out there too!
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04 F150 | 5.4 3V | Whipple 8PSI | Magnaflow X-Pipe and Mufflers | 285/60/18 BFGoodrich KDW2
Half Throttle Bad Traction Launch | 14.5@93.30 | Need Real Tires
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