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Registered
Join Date: Mar 2004
Location: Harston, Leics, England
Posts: 1,084
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I’m pretty sure they are oval so that a certain amount of NVH doesn’t get through the linkage and into the cabin. I fitted a Stomski coupler a couple of years ago and get all sorts of noise coming through now. It’s really noticeable on road trips so I am going back to the original design.
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