[Dave at Pelican Parts]

Jeff Bowlsby, one of the most knowledgeable D-jet people out there, says that there is.

I checked a set of early ones vs. a set of late ones for resistance, and they were all in the same range. When I had them cleaned and tested, the listed flow numbers when they came back were all in the same range.

I was hoping for more info from Jeff, or anyone else who knows conclusively.

I doubt that Bosch or Porsche would put a different part number on the 75+ ones with no reason...

--DD