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      03-25-2013, 06:55 AM   #16
WAY
Brigadier General
Australia
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Drives: Fast ones
Join Date: Jul 2007
Location: Melbourne, Australia

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I've just looked it up. The old 135i's e-diff only works with DSC turned off completely. I could swing the tail out on the 135i before I put the Drexler on, but it wasn't as consistent and you cook the rear brakes. And on the track, there is no comparison. Mechanical diff was far superior in feel.