Sound Symposer Mod
Registered User
Joined: Sep 2013
Posts: 256
From: Canada
Rep Power: 23
I thought the sound symposer has something to do with the A pillars also?
Or is the A pillar involved in another P-car other than the 991? Maybe the Cayenne?
Or is the A pillar involved in another P-car other than the 991? Maybe the Cayenne?
Last edited by dyim; Feb 17, 2014 at 09:26 AM.
Registered User
Joined: Oct 2013
Posts: 665
From: SoCal
Rep Power: 46
Also, that actuator is buried, behind the air cleaner, so getting to it is not easy.
It would be nice to remove the actuator & valve some day and figure out what is needed (resistor probably) to keep the error code from setting.
Registered User
Joined: Jul 2003
Posts: 964
From: SF Peninsula and N Lake Tahoe
Rep Power: 61
could one theoretically personalize the cabin sound by placing covers with different sized orifices or even musical instrument like diaphragms at the exit port under the carpeted cover so it is less drony / boomy and more high pitched or raspy per ones preference?
Thread Starter
|
Registered User
Joined: Nov 2013
Posts: 912
From: California
Rep Power: 56
Interesting, I hadn't thought about the sensor ... Could catch oil I guess. Just saw the discussion on intakes on Serge's thread also. With previous cars I've had mixed experiences. Had an Injen cold air intake on my e46 m3 and that really made a difference. On earlier cars, I had some bad experiences of losing low end torque ... Need to make sure length supports the right resonance. Looks like the stock air box is somewhat nifty. But then the cup car has a simple big filter....now they don't care as much about low end torque I guess ;-)
Will hold off and see if someone posts some experiences. For now, I have the Bmc filters inside the stock air box and will leave it at that...
Will hold off and see if someone posts some experiences. For now, I have the Bmc filters inside the stock air box and will leave it at that...
I would consider a GIAC tune / intake combo on our cars, but I'm (surprisingly) satisfied with the car in stock form.
Registered User
Joined: Feb 2011
Posts: 563
From: St. Louis
Rep Power: 43
I just performed this mod on my C2S. Wow! What an improvement. I can listen to the radio clearly now and enjoy the quiet and solidity of the car. The exhaust sound it still glorious but now outside the car where I want it. Best mod so far!
Thread Starter
|
Registered User
Joined: Nov 2013
Posts: 912
From: California
Rep Power: 56
Glad you're enjoying the difference! I felt the same way after I did this, especially when I still had the original PSE muffler installed.
Registered User
Joined: Mar 2014
Posts: 18
From: My house
Rep Power: 0
Dumb question perhaps, but I'm new to Porsche. Would a dealer take the position that this mod voids any part of your warranty? Its seems really mechanically innocuous, but is Porsche **** about DIYs?
Thread Starter
|
Registered User
Joined: Nov 2013
Posts: 912
From: California
Rep Power: 56
Keep in mind that Porsche can't legally "void" the warranty for this mod. They'd have to actually prove that the modification caused the failure/fault of another part, or the part itself.
Registered User
Joined: Feb 2012
Posts: 313
From: Mid-Atlantic
Rep Power: 33
I stuffed some packaging foam in the the cabin inlet back in 2012. Have enjoyed the exhaust noise from the outside much more since. 
And prefer hearing mechanical whining of things more so than the intake / symposer that I found sounded about as good as a cheap stereo bass speaker.
And prefer hearing mechanical whining of things more so than the intake / symposer that I found sounded about as good as a cheap stereo bass speaker.
Last edited by fbroen; Mar 24, 2014 at 12:07 PM.