tbi mods

ok i order these parts from cfm technologies

air flow enhancer
tbi power plate
injector spacer
adj fuel pressure regulator (and install kit)
has anyone ever done this b4( bought or installed them selves)
i have never done anything mechanical to any of my vehicles until today when i did the alternator. when i called shop to install these parts for me that anyone could do it themselves. i was wondering if anyone would suggest for me to try this on my own!!! i dont want to but if it is as easy as they say i will attempt.