The XD-16 has been discontinued, it has been superseded by the new MTX gauge series. The MTX-L (air/fuel gauge) is now available, soon to be followed by a full line of gauges to be released later in the year.
For more information on the MTX-L please click the image below:
The XD-16 will continue to be supported. Complete documentation is avaiable, and the support pages, videos, application notes and tuner resources can also speed you on your way to effective tuning. Click here for the web-based print tool.