ZEX Nitrous 82220 Wet Nitrous System 2003-06 for Nissan 350Z 

The ZEX™ 350Z Nitrous System is the only direct fit nitrous system on the market for this incredible car. Adjustable from 55 to 100 horsepower, the kit includes a custom designed billet fuel adapter that bolts easily on to the factory fuel rail. This adapter keeps you from having to cut any fuel lines during installation. Because of the 350Z's higher than usual base fuel pressure of 51psi, the kit also includes a custom set of tuning jets that not only maximize power but engine safety as well. ZEX™ Active Fuel Control™ technology adjusts fuel enrichment with variations in bottle pressure to ensure that you're never too rich or too lean. ZEX™ electronics activate the nitrous system only at wide open throttle for safety and power when you need it most.