Is this comp legal?

[Forcefulness]

So I recently broke a green stickered center piece on my Yuxin 4x4 and I ended up replacing it with a green piece from my stickerless version, is this comp legal?

 

[Sa967St]

No. It violates 3j:

3j) Puzzles must be clean, and must not have any markings, elevated pieces, damage, or other differences that significantly distinguish any piece from a similar piece. Exception: a logo (see Regulation 3l).

 

[JustinTimeCuber]

No.
Regulation 3d should also be mentioned.