I have the 4.6 with the sport 4x4 package, and i am looking for some more kick. The extra power really isn't for towing or haulling, but just for fun on the road. Is it worth puttin in a supercharger/turbocharger? will it hurt the engine? warranties?

------------------
1999 Black F150 XLT Sport 4x4
Flareside
4.6 Triton V-8
Manual Transmission
Captains Chairs
Button-down Tonneau Cover
Webasto Sunroof
Spray-on Bed-liner