So, Porsche is selling an XLF coded feature called Porsche Sport Exhaust. It includes valved end exhaust and a button in the central console that can enable or disable the "loud" mode. However, there are cars like mine that have the valved sport exhaust but lack the button in the console. I think those are cars with Sport Chrono which didn't pay for the PSE. Typical Porsche. I called them and some clueless dude told me there's much more to the PSE than the valves which was complete and utter BS.

On all threads people suggest something really stupid - to disconnect the vaccuum from the valves or the solenoid and keep them open all the times. That's really something I would do to a Golf III but really, Porsche? Plus, in normal cruize mode I love how quiet the car is. Sport +, valves open (automatically) and you get all the pops and bangs.

To begin with, let me share some info about the button itself. It's part of the Clima unit actually and all units have ALL the buttons available. They are activated and deactivated with coding and nothing more. So, even if you have one button in the right console, you can enable this, pop-up the lower plastic and see for yourself that the button is working and even leds are flashing. Here are some photos about that:



The button itself is from 2 pieces, going through the plastic, so you can open the top one witout doing anything but if you want to ADD a new button you need to disassemble the right column of buttons.



Ideally, you will find a 2nd hand unit that has exactly your number of extras. Depending on what you can source / find you need the lower plastic piece because they are "filling in" different number of slots - 1,2,3 etc. You can't just pop one place holder and replace it with a button. Again - typical Porsche.

I think there are videos about opening that piece on YT, it's pretty simple - pop up the geashift, the plastic around it, there are 2 screws for the carbon/metal/piano trim around it, pop that out and underneath you can access the row of buttons and remove it.

Next, it's important to order the buttons properly. Just google Panamera central console or smth like that and find a car that has your configuration. In my case on the right, I had Start Stop and Lane assist. Once you add PSE, the order will become Start Stop - PSE - Lane Assist. It's the same button, they just need to have the proper picture on it. Since I am lazy and don't like the lane assist anyway, I just replaced the top part of the button with the proper one I got from some second hand unit.



There's a very slight difference between preface and facelift buttons. On facelift ones you need to trim a tiny plastic piece from the inside of the button. 10 seconds job.

Last thing you need is a working PIWIS and some coding.

In (E)ngineering mode, go to Diagnostics -> F7 to open the additional menu. There you will find a Maintenance of vehicle data button.



Select and proceed. Here you will find your car specifications. You need to add an X and an M feature.





By the way, from here you can code your Start/Stop button to remember its last position. Turn off the default on option and enable the last mode one.



Now, press next and make sure you SAVE the changes with F8 or the button.



Now, your car is configured with that option Back go overview, select DME and BKE units (engine and clima control) and go to Coding and Programming



Select Manual Coding and then enable the same M and X numbers that you have added to the car. Next, next and you're done You car will remember the last value of Start/Stop button and the second button from the top will open and close your valves. They automatically open in start stop plus the engine knows it has PSE and does not suffer from backpressure loss if you drive with the valves open. Mine does pops and bangs and sounds awesome, zero drone, quiet as a mouse on comfort mode.

 

By the way, adding the Turbo / GTS spoiler is super simple 1 hour job including the coding which is done the same way. I will make a wrap up of it too once I have a bit more free time.

 

This is the same process also for the 971. I have done it on my 971 and it is much easier as there is no button, it will show up on screen

 

But without really sport exhaust system, what is sense to active it?

 

That’s the thing. Many cars HAVE it. Porsche just want to charge for the button and don’t activate it.

 

Is there a way to ID the exhaust system? I don’t have the PIWIS, but if I can determine an actual need it is certainly on the Christmas list.

 

Look at the tail pipes. If you have valves you have it.

 

Mmm so how i can check if my panamera e hybrid has original sport exhaust?
Because in original optional's list is not quoted

 

I just did and the center two outlets have valves. But they are open. I’m on my second back part of the exhaust. The original section was replaced under warranty because the valves stuck open. It definitely was louder. Are the valves what makes the PSE, or just the easiest visible attribute? The PSE on my Macan made a noticeable difference.

 

Anyone got a picture of said valves, for those of us less exhaust-familiar?

 

Only the inner ones have valves. Just look at your car, geez...they are clearly visible.



They are OPEN by default. Then you start the car, during "cold start" they remain open and then they are closed. If you are in my situation where PSE is just not coded, they will remain closed unless you reach 3000rpm or something like that.

When you code PSE:

- Valves will automatically open when you use Sport and Sport+ modes
- You can press the button to manually open them
- Engine is coded too and it behaves differently knowing that the valves are open
- In Sport+ I get pops and bangs too

Again - properly coding the car IS NOT LIKE opening the valves permanently all the time no matter what people write on forums. That's plain stupid and you shouldn't do it. You're changing the backpressure and the car doesn't sound nearly as nice because the engine module doesn't "know" about that unless coded.

 

Car is in the shop, otherwise I would have done as you said. Nevertheless, thank you for the image. That makes it very clear, which is exactly what I was hoping for!

 

What software is used is these pics please?

 

piwis

 

Thanks for reply mate. Do you think this could be why I don’t have 12v at the PSE valve actuator? I’ve looked everywhere for a solution for weeks.

my button lights up but all I have is 0.5v at the unit.