Hi Andrew
You were right. I mistakenly called my outlet the inlet.
The restrictor is in the outlet where the thermostat has been removed and flow much less restrictive than the OEM thermostat path.
And yes a smaller outlet would have achieved the same thing I suppose while reducing weight.
Did you put the Re-medy pump in from the beginning? Would be interested in a comparison of the pumps if anyone has that experience.
I thought rightly or wrongly that the restrictor provides a slightly higher pressure at the inlet of the pump and so reducing cavitation.
Cheers
Steve Izett