V4 or v2 for open flash header non cat
 

So thinking about ordering new header figure I would go with open flash version 3 header! Question which tune do anyone suggest with this header? New version 4 stage 2+ tune or original version tune non catted specific tune

Wayne's roms

From one of the other threads seems to not b much difference in Wayne rom and v4.

And from the looks is that the v2 was just a stage tune not specific for the open flash header