Its not hard, but it takes a while. I did mine with no previous car wrenching experience other than oil and brakes. I started friday after work and finished on sunday night. i could have done it faster but i took my time and cleaned a bunch of stuff. There is nothing tricky about it as long as you can follow the directions. Here are some pics of the install. 2005-2-7 Supercharger install
you will need spark plugs,sealer(ultra black) and solder. read thru the instructions several times before you start and clear up anything your not sure of beforehand. They supply real good instructions
Its not hard, just takes awhile. Directions have step by step pictures. I have taken it off a few times so i can fly through it. But the first time took me awhile by myself. (also first wrenching experience with the stang).