Any extra wear on these parts would negligible/minimal at best. For a course lasting about 45 seconds, if you ran six times per event, you would have driven only 4.5 minutes per event. An average club might have 8 events per season. If you went to every event, you would have driven only 36 minutes on course for the entire year.
eventerke is right. Unless your car already has a lot of miles and these parts are already worn out, this local tuner doesn't know what he's talking about.
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