If you put a gauge on a 1" pipe , run 10 ft., then bell up to say 24",
add another gauge,
each gauge will read the same static pressure. At flow, it will behave as
it should with standard friction losses or Cv applied. No magical increase
in psig.

-zero

All pipes have loss, otherwise we'd have a superconductor pipe which
doesn't exist. Magical increases in pressure were never discussed. A
possible increase of pressure at the output end assuming a lossy pipe
can be achieved.