ok i really want a s/c now that i know more about them so i have couple questions. one are they hard to install and if so should i have it pro installed? two procharger makes a few blowers for my car one is a 7 pound blower which is ok (3700$) then theres a 9-11 pound blower (3900$) now that more like what i want , now to the question if i jump the 200 bucks and get the stage 2 should i get a 9 10 or 11 pound system? now do rember that this is mainly a street car not much strip use so it much be reliable and i want to make this car last a while. well thanks for the help.