I just bought a ZEX dry nitrous kit for my little sister's car a couple weeks ago and I have decided that I need the money for the racecar worse than she needs the nitrous. It is a new kit that I unpacked and filled the bottle, but has never been used.

55 - 65 - 75 hp jets
I also bought the ZEX filter and extended lines to spray into the end of the filter...its a nice little setup.

This kit is real easy to install, no wires, relays, or solenoids that you have to mount. It is all self contained within the ZEX box so it is a clean install. It will add fuel when you spray and will put you at 11.7-12.1 a/f ratio. You just hit the activation switch, and the nitrous is activated by the TPS sensor. No silly buttons, no silly throttle switch. It senses when you are full throttle and sprays. It is the safest kit available and definately the cleanest install.

I just paid over $600 with all the accessories 2 weeks ago and I'll let it go for $400.