First off, most people say a 50 shot is the max save nitrous shot.
as for the quality / effectiveness of that kit. I would be weary. This because with a large tank, you have continuous pressure in the line to feed all of the nitrous through. That system, it just gives a tiny squirt, not even all of the nitrous will make it in to the engine because there will be no pressure left behind most of it. Make sense? kinda like water in a garden hose, when you turn it off a good amount is left in there because there is no pressure to push it through. Although the vacuum of the engine will help to pull it through, that woudl greatly defeat the purpose and effectiveness. Also, this system has no way to purge, so you will be shooting alot of air then a tiny bit of nitrous.
Overall, I dont think that is worth the $$$. You can get a decent 50 shot, with 10 lb bottle for just a tid bit more. | 
Nitrous? 
Linear Mode
