I think its the same effect as LED headlights, it looks/sounds cool but does not really do much except attract attention.

 

From what I've understood, non-PSE valves are somewhat different in that they're open below 5mph (a member had a video showing this), but then close above 5mph, and then open above 3,000rpm.

With PSE, see my previous post. It all depends on whether you're in Sport mode and/or the actual exhaust switch is activated.

If the exhaust is OFF (either by not being in Sport/Sport+ or manually shutting off the valve button), then the valves stay closed unless you go over 3300rpm and are giving it more than ~30% throttle.

If the exhaust is ON (either in Sport/Sport + or manually turning the valve button on), then the valves are obviously open the entire time.

Is it worth it? See below.

If you're searching for an answer whether an exhaust is really "worth it," then PSE probably isn't for you. The "few extra burbles" and sounds are there because lots of drivers enjoy having a louder exhaust note. Some may do it for show, others may do it just for their own enjoyment. Either way, it's something a ton of people opt for. I'd disagree that the only thing it does is "attract attention," as I love opening up the valves on canyon runs or spirited drives since you hear much, much more. Sounds heavenly.

 

Thanks for the comprehensive reply.
I love the noise too!😃

The issue I have is that there are no further benefits form PSE so if it's ONLY about the noise and not any HP gains then surely an aftermarket option is better in the long run.
In my country only Remus and Akrapovic is officially approved by Porsche

My issue is that I would like a switch to make it quieter when I DONT want to attract attention but still have the advantage of noise and more power.
The akrapovic system looks great but it's around. 15000 usd here 😱
Remus is the same price as PSE in my country but it doesn't have a switch but not sure how the valves work on this system.

 

PSE is amazing mostly because of the valve functions. I can't even begin to explain how convenient a valve on an exhaust setup is. You can keep the car quiet and tame during morning commutes, dates, family rides, etc. But when you're itching to wake up the entire city block or want to give yourself goosebumps in a canyon, you can turn it on with the touch of a button.

In terms of choices, what about Cargraphic? You can buy their valved x-pipe and add on their own control module (remote) that will allow you to open and close the valves. I think a couple of manufacturers have this feature, and it's sure as hell cheaper than Akra.

 

Instead of Cargraphic control module why not the PSE Switch? Makes it look original. That was the main point behind this thread. Order just the switch panel and have it programmed at the dealer to function like a PSE (valve control). That way you can get any valved center section you like.

 

Will that work?��if so that's the route I will take.

 

I wonder if this would work with aftermarket valved exhaust systems. If it were so simple I think all systems would make use of it.

 

It sure does. I'm not sure why this wasn't brought up to OP before, but it's certainly possible. My car was equipped with PSE, and my center muffler was replaced with the Cargraphic valved x-pipe. It's all connected to the factory switches, so it retained full stock functionality.

 

Sorry. I think you misunderstood.
I have a C2S with NO PSE currently.
So can you add an aftermarket centre and still add the PSE switch.
Why then do companies like cargraphic make a remote for the valve. It would be simpler to just add the switch.

 

The answer is yes, you can add the switch. You just need to know the right part number for the switch and have it programmed at the Porsche dealer. This is what I am still considering. I've been doing a lot of searches on this forum. One member posted a complete instruction manual for the PSE installation and part numbers. The PSE consists of three main components: The new chrome tips (I don't need them), the center muffler with vacuum lines, the switch panel. Suncoastparts.com quoted me $230 for the switch panel. It would take about 1-2 hours for the dealer to put the new switch panel in and reprogram. There are four different options for the switch panel. You need to get the right one depending on the VIN. With the PSE switch panel you get to choose the center section.

I'm thinking of doing this with the Standard Non-PSE center section for now. I'm just wrestling with the idea of do I really need this option to turn valves on/off and is changing the sound that important to me. I know it is important to others. The whole investigation process of how PSE and Non-PSE systems have been fun and brought some surprises to my assumptions. I did not realize that the valves are open at idle for Non-PSE cars. I also thought that at cold start up the valves are open since it is markedly louder for first 40 seconds. But in reality they are closed and exhaust is going through the outside mufflers and then they open and counterintuitively the sound quiets down.