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      12-05-2009, 02:41 PM   #58
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Drives: 135i SG 6MT
Join Date: Dec 2009
Location: San Carlos, CA

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2010 135i  [0.00]
Thanks so much for this thread! I bought my 2010 135i because of this thread (I knew I needed a hitch, and was hesitant on the 135i because BMW didn't supply one).

A local muffler shop did the installation easily for about $200. I haven't yet had the wiring installed.

One thing about the 2010: When the car warms up, the muffler lowers. There is a bracket on the right of the muffler that ends up resting on the towbar, causing a terrible "grinding" sound when accelerating. Bending the bracket slightly away from the towbar solved this.