986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Performance Exhaust and Header for Boxster

RandallNeighbour · 04-12-2007, 12:51 PM

The cabin noise you hear is called 'resonance.' The way to reduce it is to stay above 3k rpm... bad excuse for a solution, I know! But most of the 2 chamber mufflers out there cause resonance in this rpm range.

04-12-2007, 12:51 PM	#182
RandallNeighbour Registered User Join Date: Jul 2004 Location: Houston, Texas Posts: 7,243	The cabin noise you hear is called 'resonance.' The way to reduce it is to stay above 3k rpm... bad excuse for a solution, I know! But most of the 2 chamber mufflers out there cause resonance in this rpm range.