The Schnitz Motorsports Progressive Nitrous Controller utilizes a digital micro-controller for precise timing and control over the injection of nitrous oxide. The rate of nitrous injection is programmable for beginning and final power percentages. The unit also contains a built in digital delay timer allowing precise control of the starting time of the nitrous injection. An advanced feature is the ability to select the pulse frequency that the nitrous and fuel solenoid operate at. Also a +12 volt output is available for activating an ignition retard unit or relay. A digital timer controls the output. The timer starts when the unit activated

The controller is brand new and never installed I would like 500 shipped. But ill take some realistic offers.

<img src="http://secure.cartsvr.net/product_images/catalog2486/picname311416.gif" alt=" - " />

 

Best of luck to you. I tried selling mine here for $325 shipped and got no takers <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />