The chances to buy a genuine SSQV are approx. nil .
If you are going to recirc a valve, i would not use an SSQV unless staying at low boost (like less than 15psi). The exhaust port is really small. I am running a recirced Greddy type RS (because it was a second hand, genuine one, for cheap, and came with a hotpipe).
It uses 2 springs though, so will leak under vacuum like all dump valves with this design. But as it is recirced, this is not a problem.
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