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      06-29-2007, 12:55 PM   #9
O! So Sour!!
FifthStreetz's Avatar
Drives: Fast e30 / Slow M3
Join Date: Apr 2007
Location: Fort Lee, NJ

Posts: 15,506
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2008 M3  [4.75]
Originally Posted by Fuzzz View Post
Not sure about the E90, but on the E46 M3 and E60 M5, the ECU actually records the number of times you go over recommended break-in rpm, at two threasholds (med and high) and the number of times you hit the rev-limiter. Improper break-in could result in warranty hassles down the line.
hmmm very interesting~ Ill def. keep that in mind!

It feels like almost a invasion of privacy...
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