Step 1 Difference between MMU2S kits
⬢There are two different kits for the MMU2S:
⬢The first kit is for updating from single material MK3S/MK2.5S to MMU2S
⬢The second kit is for updating is from MK2S MMU1 to MK2.5S MMU2S
Both kits differ in the amount of the included parts. However, the assembly manual is the same and exceptions are noted in separate steps.