I have headers (of course) and was thinking I could install one of these directly into the factory ducting:
http://www.my12voltstore.com/12_Volt_Ducte...p/sd12-4000.htm
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I still have my booster fan, nice flappers, J tubes and plenty of ducting... they make a 50 amp model as well.
It would need to be located in the engine bay in my opinion...