991 Sport Exhaust Installation
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You're in North Carolina, yes? Drive it up to Northern Virginia and we can do it in about 50 minutes in my garage once the rear of the car is jacked up. I cannot believe they want $ 800 to swap out the center muffler - its not that hard. The gaskets are metal and re-usable, just flip them around. There are (6) nuts to the flange that hold the pipe to the header - they do not need to be replaced. Exhaust tips are the same and its just a center pipe swap out. I've done so many 991S exhausts that I'm pretty sure I can do them blindfolded now - and I'm not kidding. It takes longer to do a brake pad swap on all four wheels...here's a photo sequence of installing a full exhaust on a 991S that I did to my car, you only need to do the center: https://www.6speedonline.com/forums/...91s-today.html
If you don't mind, I would definitely like to take you up on the offer. I'll PM you once my parts arrive.
Thanks again.
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Joined: Oct 2009
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From: Alexandria, VA
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Drcollie...thank you for the offer!!' That's awesome! Even better, I live just around the corner from you in Vienna (I moved about 4 years ago and never updated my profile).
If you don't mind, I would definitely like to take you up on the offer. I'll PM you once my parts arrive.
Thanks again.
If you don't mind, I would definitely like to take you up on the offer. I'll PM you once my parts arrive.
Thanks again.
Duane
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Not sure what the right valve motor is...I've attached the diagram of all of the PSE parts. The only ones you need are 1, 8 and 9 if you want to install without the switch. This is what I've been told by two different dealers.
Another forum member recently told me that the old tips (S/4S models) will work.
Also, how do you know that it won't be in the always on position? It would make sense that without the switch closing the valve that it would always be open. I believe this is how it was on the 997.2. I guess I'll know in about a week.
Another forum member recently told me that the old tips (S/4S models) will work.
Also, how do you know that it won't be in the always on position? It would make sense that without the switch closing the valve that it would always be open. I believe this is how it was on the 997.2. I guess I'll know in about a week.
#9 is the same part number (for both mufflers), so I don't see why it is needed (but it can't hurt to get 2 new ones).
Same for Gaskets, Nuts and Bolts.
I think you do want those vacuum lines 10, 4, 11, 12.
Those are the last 4 parts, that I listed here:
https://www.6speedonline.com/forums/...ml#post4128325
They are real cool Steel Mesh Covered Vacuum Hoses (and they better be for $150).
You will need to source your own clamps for them though.
The Porsche Clamps require a special crimping tool.
#11 joins the two vacuum motors together.
#12 joins the two #4 vacuum hoses together.
#10 connects #4 to the Change Over Valve.
You have four clips, on your existing vacuum motor line, that you re-use two of, on #10 (as the pic shows).
That's if you want it like the factory did it
I agree with STG958's list.
I am interested in the Clamping Sleeve & Clamping Collar (from his list).
I did not see part numbers listed for those.
About your switch [always on] question:
Without the switch you can't open the valve below 3300 rpm.
You will just be stuck with what your computer is doing now, which is:
Open at Idle.
Closed off-idle to 3300.
Open after 3300.
That is actually real good programming, unless you want to tool around at low speed listening to pops and gurgles.
Many do
Which is why PSE (when you get the switch) is programmed to automatically do just that, in S & S+ modes.
The switch allows you to undo that and drive civilized in the city.
Last edited by lunarx; Aug 14, 2014 at 01:37 AM.
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Perhaps a stupid question, but I'll ask it anyway....do the vacuum lines need to be hooked up? It was my understanding from the 997.2 generation that if you didn't hook these up then the system would be always-on?
I see drcollie hooked his up on his Tubi system, so something is telling me they are important (e.g. prevents codes from being thrown).
I see drcollie hooked his up on his Tubi system, so something is telling me they are important (e.g. prevents codes from being thrown).
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All the really cool kids live in North Carolina.
Seriously, that was a generous offer Duane. I don't care what everyone else says, I think you're a nice guy.
I feel a little bad because my S/non-PSE car is a bit loud at idle, and when I back out of my driveway in the morning, I'm basically just idling and slipping the clutch to move the car. I'm sure I'm disturbing some of my neighbors. It makes me wonder why some marketing guy thought that the idle should be loud. Just to help sell the car?
Seriously, that was a generous offer Duane. I don't care what everyone else says, I think you're a nice guy.
I feel a little bad because my S/non-PSE car is a bit loud at idle, and when I back out of my driveway in the morning, I'm basically just idling and slipping the clutch to move the car. I'm sure I'm disturbing some of my neighbors. It makes me wonder why some marketing guy thought that the idle should be loud. Just to help sell the car?
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Perhaps a stupid question, but I'll ask it anyway....do the vacuum lines need to be hooked up? It was my understanding from the 997.2 generation that if you didn't hook these up then the system would be always-on?
I see drcollie hooked his up on his Tubi system, so something is telling me they are important (e.g. prevents codes from being thrown).
I see drcollie hooked his up on his Tubi system, so something is telling me they are important (e.g. prevents codes from being thrown).
I never got a code when my CO valve failed, so codes should not be a problem.
If you meet up with drcolie, let us know how you think his Tubi sounds.
Does it put PSE to shame and is it still quiet enough in quiet mode.
Also, remind him that he is a really cool guy, for helping us all out, as much as he has.
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Sure, you could cap the vacuum line or just completely remove the vacuum line and cap the change over valve.
I never got a code when my CO valve failed, so codes should not be a problem.
If you meet up with drcolie, let us know how you think his Tubi sounds.
Does it put PSE to shame and is it still quiet enough in quiet mode.
Also, remind him that he is a really cool guy, for helping us all out, as much as he has.
I never got a code when my CO valve failed, so codes should not be a problem.
If you meet up with drcolie, let us know how you think his Tubi sounds.
Does it put PSE to shame and is it still quiet enough in quiet mode.
Also, remind him that he is a really cool guy, for helping us all out, as much as he has.
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Joined: Oct 2009
Posts: 1,172
From: Alexandria, VA
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You can extend the existing vac lines on an 'S' using 1/4" Fuel Line hose and some in-line vac splicers from AutoZone for about $ 12. No need to buy a fancy crimper, some little fuel line hose clamps work and they're about $ 3. Of course, if you want that to be Porsche OEM you can pay around $ 200 for the same parts that are blessed by Stuttgart, but the functionality will be no different and no one is ever going to see it.
It's an easy install. Quick on, and quick off. A little fussy getting them off and on (center muffler) without pulling the bumper cover, but do-able if you have patience and don't mind flexing the bumper cover a little bit.
It's an easy install. Quick on, and quick off. A little fussy getting them off and on (center muffler) without pulling the bumper cover, but do-able if you have patience and don't mind flexing the bumper cover a little bit.
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You can extend the existing vac lines on an 'S' using 1/4" Fuel Line hose and some in-line vac splicers from AutoZone for about $ 12. No need to buy a fancy crimper, some little fuel line hose clamps work and they're about $ 3. Of course, if you want that to be Porsche OEM you can pay around $ 200 for the same parts that are blessed by Stuttgart, but the functionality will be no different and no one is ever going to see it.
It's an easy install. Quick on, and quick off. A little fussy getting them off and on (center muffler) without pulling the bumper cover, but do-able if you have patience and don't mind flexing the bumper cover a little bit.
It's an easy install. Quick on, and quick off. A little fussy getting them off and on (center muffler) without pulling the bumper cover, but do-able if you have patience and don't mind flexing the bumper cover a little bit.
Really, Thanks for your help...
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Just a thought - there is a vacuum valve connected to the sound symposer that is turned on and of with the Sport button. I am wondering if that could that be connected to the sport exhaust valves to turn it on and off manually? Might be easier than getting the button installed.
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Drcollie...thank you for the offer!!' That's awesome! Even better, I live just around the corner from you in Vienna (I moved about 4 years ago and never updated my profile).
If you don't mind, I would definitely like to take you up on the offer. I'll PM you once my parts arrive.
Thanks again.
If you don't mind, I would definitely like to take you up on the offer. I'll PM you once my parts arrive.
Thanks again.