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Old 04-09-2009, 05:04 AM   #2
Ofishbein
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Join Date: Aug 2007
Location: CA
Posts: 115
I installed a Dansk "sausage" muffler on my '01 S and experienced some drone between 2800-3000 RPM, but it wasn't too bad - I just kept in a lower or higher gear.

I later had Dansk headers installed and the drone disppeared. I guess the harmonics of the headers and muffler together must have cancelled each other out. All I know is that the problem is now gone. I still have stock mid-pipes with the secondary cats.
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