Supercharger

I have an 04 double cab with the 3.4L engine. Interested in adding a supercharger.
Any advice?
Any idea if I need to or should change anything else, i.e spark plugs, oil type, fuel?
Pros/Cons
Thanks, tacojim

Pretty much all your answers are here:
http://www.gadgetonline.com/4run.htm

you have to get the urd kit then your set. also a highflow mufler would help