986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Boxster catalytic converters

Lowski · 12-07-2023, 09:35 AM

Thanks for the follow up on this.

Did your CAT rattle all the time? When hit with an object?

My 2002 2.7L has an exhaust noise/rattle that occurs during acceleration once the exhaust warms up for about 10 minutes. When it's cold I can't make anything rattle when smacking with a rubber mallet. Heat shields are tight, so I'm thinking the matrix detaches from the CAT body when things heat up.

12-07-2023, 09:35 AM	#19
Lowski Registered User Join Date: May 2018 Location: Seattle Posts: 54	Thanks for the follow up on this. Did your CAT rattle all the time? When hit with an object? My 2002 2.7L has an exhaust noise/rattle that occurs during acceleration once the exhaust warms up for about 10 minutes. When it's cold I can't make anything rattle when smacking with a rubber mallet. Heat shields are tight, so I'm thinking the matrix detaches from the CAT body when things heat up.