I bought this from a forum member around 4 years ago. I have used it in my 83 SC since then and can confirm that it functions quite well, as does the boost gauge. While the boost gauge functions in the sense that the needle moves, it isn't exactly accurate as it reads around .3 bar before positive manifold pressure is actually achieved (checked against a mechanical gauge). It seems that this is a function of all 930 gauges, but wanted to mention in the interests of full disclosure.
$450 shipped in CONUS
$500 shipped in CONUS with slightly used (purchased fall '22) Porsche boost sending unit
