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Header Drone?

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Old Jan 31, 2010 | 07:49 AM
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Default Header Drone?
I think I'm about to get 1-7/8 Kooks headers on my LS2 A6 with NPP exhaust... what will be the acoustic impact of the Kooks at high RPM? at idle? Will it add any highway drone that the NPP M2W switch can't handle?

Thanks for sharing information!

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Old Jan 31, 2010 | 08:06 AM
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I have a MagnaFlow (15884?) catback. No drone. Installed headers, got drone.
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Old Jan 31, 2010 | 08:26 AM
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I've got LT's on my '08 Z51 A6 with NPP and get almost no drone with the M2W closed, but when it's open, LOUD!
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Old Jan 31, 2010 | 11:40 AM
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Originally Posted by timd38
I have a MagnaFlow (15884?) catback. No drone. Installed headers, got drone.
I had headers on my 06 coupe, no drone. Installed Magnaflow mufflers and got drone in the 1600 to 2000 rpm range. I got rid of the magnaflows pretty quick and went back to stock mufflers, no drone with headers only.
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Old Jan 31, 2010 | 11:43 AM
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Originally Posted by achilds
I had headers on my 06 coupe, no drone. Installed Magnaflow mufflers and got drone in the 1600 to 2000 rpm range. I got rid of the magnaflows pretty quick and went back to stock mufflers, no drone with headers only.


This is the answer I was hoping for! Thanks

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Old Jan 31, 2010 | 04:48 PM
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Originally Posted by achilds
I had headers on my 06 coupe, no drone. Installed Magnaflow mufflers and got drone in the 1600 to 2000 rpm range. I got rid of the magnaflows pretty quick and went back to stock mufflers, no drone with headers only.
That's the range! I just pick a different gear to make it go away....
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Old Jan 31, 2010 | 04:54 PM
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how much power gains would you make with stock exhaust and headers...? just curious...
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Old Jan 31, 2010 | 05:35 PM
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Originally Posted by Jeremyknapp
how much power gains would you make with stock exhaust and headers...? just curious...
I'm hoping for 15 to 20 RWHP... we'll see.

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Old Feb 1, 2010 | 06:24 AM
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Mine is a Z. Works great with teh stock muffler and headers. I did a back to back on the dyno against an LG GT4 and lost nothing. The stock has the benefit of the valve whcih means radio and CD. Great job
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Old Feb 1, 2010 | 08:02 AM
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Originally Posted by sxeC6
I've got LT's on my '08 Z51 A6 with NPP and get almost no drone with the M2W closed, but when it's open, LOUD!

About to have a set of Kook's installed tomorrow - I also have the 08 z51 w/NPP. I'm glad to hear I will have a noticeable increase in sound!
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