I imagine the need for replacement is due to it being holed rather than rotting out. I got through 2 when I had the Cayman from errant stones. They're rather exposed on the modern Porsches.
@Brommers started
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I imagine the need for replacement is due to it being holed rather than rotting out. I got through 2 when I had the Cayman from errant stones. They're rather exposed on the modern Porsches.