PR Racing USA - PR HUB

What is the difference between the shocks on the v3 and v4 cars, reason I ask, I had a set of VRP pistons laying around from when I had the V3 2020 version / SB401 type R. The pistons measure the same as the ones on the parts tree that came with my v4 , 12.58mm….
I was under the impression that the new shocks are bigger than the old ones . Or did my car include the older shocks ?

There is a bit of confusion on the measurements.... I'll talk with PR and see if we can clarify. I have talked with them previously and there seemed to be 3 different bore diameters used on previous versions if my understanding is correct.

-Scott