997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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Exhaust tone changes with Sport ON?

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Old Jul 27, 2011 | 12:10 AM
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Originally Posted by skandalis447
Paul,did you try it on a closed garage?without touching the gas while idling with hot engine...simply turn on and off sport mode...
No skand but i will check at home tonight and get back to you. I did the test today at the office parked outside under the awning. There was also some noise from passing traffic on the main road. At home i am in a fully enclosed garage so that will be ultimate test.
 
Old Jul 27, 2011 | 11:30 AM
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Originally Posted by bbywu
You may have noticed your exhaust tone changing when you start up:
https://www.6speedonline.com/forums/...8&d=1308284571

Sport mode changes several parameters that will influence the tone of the exhaust. If you have a 997TT with a LWFW, listen to the rattle when the engine is warmed up with and without sport mode. Huge difference.
I just tried this. It is a pretty big difference. I never realized how muich quieter the LWFW chatter is with sport mode on..
 
Old Jul 27, 2011 | 12:34 PM
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I have a cab and FVD exhaust and with the top down, I swear that when cruising at 40-50mph in 3rd or 4th (low rpm), when I turn sport on and off I can hear a difference! (I think).
 

Last edited by number 3; Jul 27, 2011 at 12:39 PM.
Old Jul 27, 2011 | 09:41 PM
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FWIW I hear a difference between regular and sport mode.
 
Old Jul 28, 2011 | 12:51 AM
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Skand i checked it again in the closed garage and to be honest there is indeed a small difference to the ears but really nothing to get too excited about. It probably sounds more noticeable at WOT....but i cant be the driver and stand on the footpath at same time to check.
 
Old Jul 28, 2011 | 07:10 AM
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Originally Posted by speed21
Skand i checked it again in the closed garage and to be honest there is indeed a small difference to the ears but really nothing to get too excited about. It probably sounds more noticeable at WOT....but i cant be the driver and stand on the footpath at same time to check.
As others have reported too, it's quite noticable on my TT (EP2 installed) with the clutch depressed, sport turned on and rpm about 1500 to 1700 - very deep growl.
 
Old Jul 28, 2011 | 09:38 AM
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2011 tt [NOT an S model], turning on sport mode sitting still or moving makes a noticeable change in the exhaust note, stock exhaust.

--CC
 
Old Jul 28, 2011 | 11:42 AM
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I hear a very slight difference at idle but nothing to get excited about.I am running an FVD and it also happened when I ran the tubi
 
Old Jul 29, 2011 | 02:59 PM
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I noticed this the other day too. 997.1 tip on stock exhaust.
 
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