Quote:
Originally Posted by Poochie
Well put and makes a lot of sense..
The crank hub bearing in the S55 is same one used on the regular lower-powered BMW motors, so when pushed passed the S55 potential stock power output, it gives away,
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M4, M4 CS and M4 GTS have identical S55 engine
What is 'pushing past s55 stock power' then?
If anything, I think its more of a problem with people who
track their cars, tuned or stock engine.