I got a 1992 525i and was wondering how the shifting works when I put it in 123 it says s1, s2, s3. Is that sport mode? And I can put it in m1, m2, m3 with the selector on the side. Which option s or m do I want if im shifting?
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1992 525i
beyren mesh wheels
Dinan Performance chip
Ka motors carbon intake
st suspension's springs