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      03-06-2013, 11:42 AM   #4
j2m
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Canada
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Drives: '11 E92 M3 DCT
Join Date: Jun 2011
Location: Calgary, Ab


Posts: 2,452
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2011 BMW E92 M3  [5.00]
Both sides need to be ribbed.
I had to replace mine last year and I ordered part #11287841529 and it came ribbed on both sides. I was facing the same dilemma and had to order 3 times before i got the right one I needed.
I had to wait for about 2 weeks for the double sided belt to come in and my old one was shredded so I ran the single sided for a couple weeks while waiting and it worked fine but I was paranoid that the belt would slip off.

EDIT- I changed the part number to the correct part number for the double sided ribbed
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11' E92 M3 Space Grey | DCT | ESS VT2- 625 | Gintani Race (valved) + Quad Res Catless X-Pipe | KW Sleeve's | GC Camber Plates|Arkym Diffuser | Vorsteiner VRS Lip | P3 Boost Guage | Stud Conversion
PHOTO's: Click Here ESS VT2 625 PHOTOS: Click Here

Last edited by j2m; 03-06-2013 at 11:48 AM.