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      02-20-2013, 05:22 PM   #69
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Drives: 2009 E90 335i xDrive
Join Date: Jan 2012
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Originally Posted by drfrink24 View Post
~100 whp difference between AWD and RWD, that's alot of energy (heat?) being consumed in the drivetrain. Hopefully the transfer case is up to the task.

Unless this is a bigger turbo on the FBIS setup.
I'm pretty sure this xi was running 91 octane on the dyno and the FBIS dyno was 93 octane with 25% ms109... I could be wrong though

Edit: Also in the original post Shiv said that at this boost level non-xi cars dyno at 550whp on a mustang dyno
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