The nozzles of the Sukhoi T-50 seem to be aligned not perfectly parallel. However, it is not very pronounced.
What may be the reasons for aligning the
nozzles engines not perfectly parallel.
Edit: in my original post I asked about the nozzles, however, as it was pointed out, this plane used 3D thrust vectoring, so the nozzle arrangement might be this way by chance. However, also the engines seem to be aligned not perfectly parallel. The question has been edited accordingly.
Edit 2: Here is another picture Image source, Wikipedia again