got a quick question: i've already got a K&N FILTER (not FIPK), as well as superchips programmer (selectable from economy, tow, hi perf). 2004 Screw Lariat 4x4. also have roush wheels and tires (20" w/BFG all terrain T/As). but was considering a roushcharger. anyone have one (roushcharger)installed on their truck? what about cold air intakes? AEM, K&N FIPK or any of the others and what about horsepower gains? what about throttle body spacer? anyone got that (i guess i should ask about MAF as well)? any help would be greatly appreciated.

 

You buy a supercharger kit and it will come with everything you need.