No way to tell. The "right way" is patched from the inside, but there are patch/plug combinations, so in that instance, you'd still see the plug from the tread side.
No way to tell. The "right way" is patched from the inside, but there are patch/plug combinations, so in that instance, you'd still see the plug from the tread side.
Thank you sir - I guess father time will tell.
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2001 Porsche Boxster S Tiptronic