Forum: Boxster General Discussions
05-04-2012, 01:37 PM
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Replies: 8
Views: 4,097
The main problem with aftermarket Boxster...
The main problem with aftermarket Boxster exhausts has always been a ghastly harmonic droning effect inside the car at typical highway speeds. Porsche sport exhausts for the 986 addressed the problem...
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Forum: Performance and Technical Chat
05-04-2012, 01:08 PM
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Replies: 2
Views: 1,814
When one of the catalysts starts to go bad,...
When one of the catalysts starts to go bad, pieces break off of the internal honeycomb structure and their bouncing around in the housing can sound like a pretty serious rattle. This is happening to...
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