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      05-20-2012, 08:19 PM   #186
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Drives: E90 M3
Join Date: Mar 2011
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Not sure which one, sorry... I get them in home depot... they are cheap enough to buy multiple sizes and try them out... The critical thing is to fit the butterfly in the collapse position into the hexagonal plastic grille. The bolt length is not critical at all.

Put washer on the other end and that is it... clean, cheap, no special tools and sturdy enough for highway speed with no problem.

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