I bought my gauge from Nowell without any regrets, but since you asked for the factory, Ron Mathis is the president of SPA in the USA. You can email him at -- email address removed -- There are links in my signature to a picture of my gauge and to SPA's website.
Cheers,
Bryan
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<font color=#1E90FF>'94</font>, <font color=#00CDCD>2500</font>, <font color=#8B2323>5 speed</font>, <font color=#000080>4X4</font>, <A HREF="http://www.line-x.com" TARGET=_blank><font color=#FF3030> Line-X liner OTR</A></font>, <A HREF="http://dallnd6.dal.mobil.com/GIS/MobilPDS.nsf/26b7c4b33367a4a086256665004e4266/60d8a76e857b7e71852567b60072913a?OpenDocument" TARGET=_blank><font color=#FF1493>Mobil Delvac 1</A></font>, <A HREF="http://www.knfilters.com/" TARGET=_blank><font color=#8B6508>K&N air filter</A></font>, <A HREF="http://www.spatechnique.com/instruments.html" TARGET=_blank><font color=#9932CC>SPA DG-111</A></font> in <A HREF="http://www.zing.com/picture/pb6099d006b16dccf00d94d1c90034033/ff6e60cd.jpg" TARGET=_blank><font color=#E066FF>cubby hole</A></font>, <A HREF="http://www.pioneerelectronics.com/Pioneer/CDA/CarProducts/CarProductDetails/0,1429,517,00.html" TARGET=_blank><font color=green>Pioneer DEHP47-DH</A></font><font size=-2 color="#000000">