Quote:
Originally Posted by solstice
What does a stock S55 vs S58 look like in terms of hp gap?
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https://x3.xbimmers.com/forums/showthread.php?t=1638381
Says 491 at the wheel on 89 octane for S58 X3M.
https://f80.bimmerpost.com/forums/sh....php?t=1023743
https://f80.bimmerpost.com/forums/sh....php?t=1249883
Says 425 at the wheel 93 octane on a 2015 F80 M3 and 400 wheel, some inconsistencies on S55 dynos (someone please confirm a better source as these were the quickest ones I could find).
Bootmod3 says will do 500 with a tune.
https://www.protuningfreaks.com/prod...-m2competition
This is before the huge headroom in the S58 with a simple ECU tune to push it to 600whp...same tune from PTF for the S58.
https://www.protuningfreaks.com/coll...mpetition-tune