M2 tune vs BM3 Stage 1
Spoiler, the stock M2 tune makes more power and has more high end power.
https://f87.bimmerpost.com/forums/sh....php?t=1610213
Stock 352whp STD
BM3 Stage 1 329whp STD
Comparison of the M2 tune vs BM3 Stage 1
https://f30.bimmerpost.com/forums/sh....php?t=1616837
Stage 1 300whp
M2 (BM3) 312whp