Did you get the correct one as there are 2 rings, each with diff part number as each of the pipes take a different size. The Honda ring and the Isuzu ring have the same part number, and they are the correct parts....trust me, I just replaced them not too long ago. Make sure you get them both.
The part numbers are:
9-09561-225-0
1-09623-130-0
I ordered them from acuraoemparts.com (Del Ray Acura). I purchased 4 of each just to make sure I have some spares.
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