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I H8 UR DSM »
https://forums.nicoclub.com/i-h8-ur-dsm-u121.html
Sun Aug 03, 2003 3:24 pm
the size, ie. 52mm, and 60mm is basically the measurement of the openings you would need....the 'face' that goes around the gauge causes them to protrude, and not sit flush, but where you would mount them, woud the be the listed size. Some gauges have a lower profile 'face' to sit more flush, ie. Defi BF gauges...
If you follow that description.