there ar emany vendors on here that make quality kits like Harris Speedworks and Nitrous Outlet. you gonna need a lot more then just the basic kit to have a safe and effective kit.
-kit(i would go with a wet kit, you can search the difference and why)
-purge kit to clear air out of the lines before the spray
-bottle warmer to maintain the right bottle pressure
-depending on where the bottle is a remote bottle opener
-depending on the size of the shot, max would be like 100 shot on stock fuel pump, anything more you would need a new pump or boost a pump
-definetly a good dyno tune
-window switch or HSW microedge to control when it sprays etc
my recomendation would be the HSW single nozzle wet kit and the all out 3 package and you will be set all you need is a tune. dont know your mods or specifics on the car but if its a stick, stock clutch wont last long, auto will hold up for a little while. but even with a 100 shot without other mods, good luck keeping up with a zo6 because your gonna need more the a nitrous kit.
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2005 Black/Tan CTS-V, K&N Intake, Skip Shift Eliminator, Specter Werkes Spoiler, Muffler Delete, Superchips Handheld, the rest is stock, for "now"........13.6@108 with crappy 2.295 60'
1998 Camaro SS Arctic White A4- slpLoudmouth, lid,ory pipe, vigilante 3600 stall, 4.10s, TNT F1 150 Shot, Line Lock-SOLD!!!!! 11.6@118 on 100 shot | 
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