I highly, highly doubt it does. Looks like ben had to use a gauge adapter like
this with a -6AN female to -6AN male with 1/8NPT port that basically T's into it.
No disrespect to the TRD regulator...but you'd really be much better off with a more widely used unit like an aeromotive, sx, weldon, et cetera. They are easily rebuildable by buying new diaphragms from summit and most come with a port directly on the regulator for mounting a gauge.