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1997 993 Catalytic Converter

Engine

Vehicle Information: Model: 993 Carrera S ; Year: 1997; Body Type: Coupe; Total Mileage: 26718;

HiI recently put B & B muffler exhaust looking for a more powerful sound. I think it improve but a friend of mine told me that in order to maximixe sound and performance I need to change the catalytic from a 400 cell to a 100 cell.1. is this true?2. What do you recommend to improve sound?3. Will this turn the check engine on in the case that can be replace?4. I have heard of catalytic converters and catalytic bypass is this the same or there's difference?5. Any other thing you can help will be appreciatedThanksMickey

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