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Hey guys so I recently installed a brand new cobbs catback exhaust for my gen2 speed3 and it started making a rattling noises. At that time I was having stock exhaust hangers. So I decided to put cobbs exhaust hangers and still it’s making the same noise as the previous stock hangers did. How can I get rid of this.
 

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Put your factory exhaust back on, see if the rattling is still there. If the rattling goes away, then you fixed the problem.

If the rattling remains, there's a rub or bend somewhere that probably happened when you started messing with the exhaust. Find it and fix it.
 
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