around 23000 miles and unless something got in while it was been fitted but as it is now all sealed and no rips or tears in the filter.
wouldnt take much rob. bit of paper/cardboard/polythene. made to such high tolerances. only other explanation i can think of is running lean, and that didnt seem to be the issue at motorscope. unles youve gone sps mad since!
Been an expensive month lol.
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