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Old 07-10-2016, 03:48 PM   #10
thstone
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
Quote:
Originally Posted by Carl.O View Post
There is no leaks from the exhaust.
I've might missunderstood what drone is. I belived that was a more high frequent sound.
Drone is a when the exhaust exhibits a particularly louder sound at an annoying frequency in a fairly narrow rpm range.

The Top Speed/Circuit Werks/etc cat back exhaust is pretty well known to exhibit this behavior around 3000 rpm and it is typically heard while cruising on the freeway at near constant speed/rpm. The constant din of extra loudness/unique frequency can be fairly annoying.

Let us know if this is what you're experiencing or if its something different.
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1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
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Last edited by thstone; 07-10-2016 at 03:51 PM.
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