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      03-02-2013, 06:30 AM   #15
747flyboy
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Drives: 2008 M3 2012 550i M
Join Date: Sep 2012
Location: Atlanta

iTrader: (1)

Quote:
Originally Posted by Boss330 View Post
I believe it's more than 10% loss.The general understanding seems to be that the M5 is underrated by 40-80hp... (525WHP and 15-18% transmission loss = 600-640CHP).

This would indicate that your 550i is at around 500+CHP. Not too bad
Thank you Boss....I am enjoying the torque and the way the car pulls.

I cannot ask for more. It is a gentlemans car, subtle with great potentials.

Regards
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