Quote:
Originally Posted by 99540
... only thing i differ on is power - the m5 has a ton more and a freight train up top vs m550. m5 advertised at 625 is smoking mirrors, i had a dinan flash in my m550 and it got brutalized by stock m5's. the x4 had about a car on it ..
we are definitely in a good position to have these conversations
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I guess you had the 450hp model as I'm running 10.9 on the 523hp model with just a jb4.