good investment?

[CrazyJesster]

im thinking of trying to gain some small power for my 5.3 in my 01 z71. and i found this puppy here an was wondering has anyone tried it?


http://www.bankspower.com/products/show/308/10

i notice they have a tuner also and some other stuff

ive also seen videos on youtube where people have added LS6 cams. and turbos and said there kits for the turbos were reasonable. and they are getting a decent amount of power.

im telling ya a 5.3 liter swap in my 82 with some goodys sounds better and better.

with a 4l60e tranny or 80e? im sure a decent set up stomping some stangs an getting 16mpg or so? sounds good to me

might be somethin to think about for my swb


but whould the box cooler be a good investment? ive got 156k on the 01.
maybe a programmer? or turbo kit for kicks? or stupid idea?