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      01-10-2013, 01:06 AM   #3
HP Autosport
Lieutenant General

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, Brembo, GIAC, Koni, Ohlins, Performance Friction, Quaife, Stoptech, Vorshlag

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Originally Posted by TheSt|G View Post
Holy crap, a drain bolt. Here I was thinking that BMW forgot how to make such things.
That is the filler hole. There is no drain hole, unless it's the M diff.