986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Is There Such A Thing As NO DRONE Aftermarket Boxster S Exhaust Muffler?

Ofishbein · 03-02-2009, 05:22 AM

I installed a Dansk "sausage" muffler and had some drone at about 2.8K RPM, but after I later installed headers (retaining the second set of stock cats), the drone disappeared. I guess there must be something about the difference in resonance between the muffler and headers that canceled each other out. Not really sure, and don't really care - all I know is that I don't have the problem now.

03-02-2009, 05:22 AM	#11
Ofishbein Registered User Join Date: Aug 2007 Location: CA Posts: 115	I installed a Dansk "sausage" muffler and had some drone at about 2.8K RPM, but after I later installed headers (retaining the second set of stock cats), the drone disappeared. I guess there must be something about the difference in resonance between the muffler and headers that canceled each other out. Not really sure, and don't really care - all I know is that I don't have the problem now.