Quote:
Originally Posted by whatnotsomuchf80
But people are flash tuning S58 X3M's already???
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Oh yes.
Not OBD2 flashing (IIRC) but they're pulling the ECU and bench flashing them.
That's how you get those beautiful tuned power curves the S58 is showing off.
Here's the thread discussing the ECU lock issue
https://f80.bimmerpost.com/forums/sh....php?t=1760919
Here's a stage 1 dyno
Stage 1 (91-93) vs Stock
