What is required to run a nx nitrous kit on a 02 civic si?

 

You need an entire starter kit. If you are going dry, you need the intercooler sprayer. If you are going wet, you need the direct sprayer, and serious engine internal upgrades. If you aren't looking for huge power gains, I recomend you go with a Cry02 setup. It uses CO2 rather than Nitrous Oxide. It is a lot cheaper to fill ($5 at academy) and it is a lot safer for your engine.

 

To run a nitrous kit on any car, you need the kit (good choice with the NX kit, that's all I use on my cars), as well as some basic hand tools. The NX kit comes with everything you need to install the kit except the tools. If you have any specific questions, let me know and I'll be more than happy to help you out.