the difference between the stage 2 and 3 kits are

the 2 has OEM axles which need to be remanufactured, and the oem linkage
the 3 has new remanufactured axles, but no shift linkage.

when i boost, i dont plan on going any higher than 300hp, probably much less. will the remanufactured axles handle that? or am i going to have to buy new axles anyways when i boost? Thanks again. just trying to figure out which is the better deal