what would be the best nitrous system for a completly stock rsx

nitrous is pretty much the same for any car.....just get a Zex kit and have fun

well my friends brother told me if you get certain ones they can blow your engine cuz it couldnt take it if thats true what is one that i can get that wont blow my engine

Tell your brothers friend hes a dumbass.

How much do you want to spray? 55, 65, 75 +??

If you only want to go with like a 55 shot I would just go with a dry kit, get one with a WOT switch to activate the nitrous, put highest octane gas you can get from the gas station and go have fun.