here are two links to the parts.
I am doing a couple of graphics to answer you better.

MB# 617 090 03 40
Air Cleaner Bracket
http://www.pelicanparts.com/cgi-bin/ksearch/pel_search.cgi?SUPERCAT_FLAG=&make=&please_wait=N&forumid=&threadid=&command=DWsearch&description=617+090+03+40&I1.x=14&I1.y=11

MB# 617 988 01 11
Air Cleaner Mount
http://www.pelicanparts.com/cgi-bin/ksearch/pel_search.cgi?SUPERCAT_FLAG=&make=&please_wait=N&forumid=&threadid=&command=DWsearch&description=617+988+01+11&I1.x=14&I1.y=13


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Have a great day

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