Taffy66

I was down at my OPC yesterday configuring a new 992S with my SA..I said to him that i preferred the look of the standard exhaust with the quad tips and save the money.As he'd just returned from driving the 992s in Spain in his opinion the PSE is an absolute 'must have'.
He thought that the PSE transforms the noise and character of the 992 and sounds much better than the PSE on the 991.2..The 992 PSE looks much better painted Black IMO but i'm still not 100% convinced as i much prefer the look of the standard quad pipes.
Pete Stout will hopefully respond to your concern and shed some light for both of us, as its a lot of money for something unless it adds a lot to the sound of the car.

groundhog

I think another thing to factor in is in the 991.2 series the sound is different between the base, S and GTS - and becomes more pronounced as you move through the rev range and is a function of turbo size, boost and effective compression ratio - the higher the effective compression ratio the bigger the bang.

If you go to the configurator you listen to the different sounds - tick the PSE box and click on the information icon - at the top of the pop up is a sound button which you can click to hear the PSE. To my ears it sounds considerably more raucous and guttural .

adamlew

Since the new actual end-pipes are not connected to the exhaust system (but attached to the bumper) one should easily be able to add the PSE while keeping the quad exhausts. May become an option later perhaps? If not, I would be surprised if it would not be possible as an aftermarket fix, and adding the original PSE for a 991 (to an existing car with standard exhaust) is not that much more expensive than having it added from the factory. My local Porsche dealer also said the PSE was a "must" but also admitted that no single car at the dealer launch had the normal exhaust (at least that he saw/heard). May indicate the standards exhausts sounds very bad..? For me, I am not a huge fan of the crackle and pops of the PSE of the 991.2. For me the PSE would be a different proposition if it was an actual performance option, i.e. a more free flowing system adding extra hp/torque. But just my opinions of course, and perhaps I will change my mind if the standard exhaust ends up being too quiet - and add PSE while keeping the quad pipes..

darkblack

stout

I too am happy with the sound of my 991.2 Carrera, and with the base exhaust no less. One of the best sounding 911s I've driven? Nope. But "sounds like crap"? I have yet to meet a flat six that sounds bad, and the only ones that really let me down were the 996/997/991 Turbo cars.

We've been spoiled by very loud and soulful GT3 and X51 engines—and, to a lesser extent, other 9A1 engines—in showroom stock 911s lately. That wasn't "normal" until lately. In the old days, a 2.7 or 3.0 or 3.2 or 3.6 weren't all that loud unless you added a muffler and/or an intake. To me, the 991.2 Carrera is a 911 back in that direction. And while it can indeed be criticized for being too muted, I find its sound sophisticated and plenty "flat six" when you're listening for it, and unobtrusive when you're not. Adds another dimension to the car, and one I enjoy also.

stout

Full disclosure: I may be a good and a bad guy to ask, as I agree more with Nick Murray's video on the 991.2 with and without PSE in that generation—PSE isn't a shockingly different sound, and I prefer the aesthetics of the standard system. Can't remember whether or not he covered this, but I also hate the canned pops and crackles. The fact that you can count them and they're the same every time—and the fact that Sport Plus cancels the theatrics to maximize performance—tells me all I need to know.

So, they've made the aesthetics better with the 992's PSE and gotten rid of the obvious theatrics, good moves—but I still think the quad pipes look better. Problem is, I haven't tested a 992 with the quad pipes.

It's possible to swap tips on 991.2 without PSE, so it will be interesting to see what's required to do so in the 991.2 bumpers. My guess (but it's only that right now) is that the main bumper skin has to stay the same and the "insert" or "inserts" will change with or without PSE. Whether the mufflers dictate which inserts can be used will be the next question…

Rennolazine

I wasnt happy with stock PSE on .2. Always felt like overrun sounds sounded like dry coconuts. Changed to akra cans which mostly fixed this but is still civilized.
Going full kline next month (with cats) because.. why not.

stout

^ Please do report back. I am amazed that Fister hasn't gone after the 991.2 market… solution that saw the muffler system modified internally could be very interesting.

Rennolazine

Will do, Pete. Ill make a short vid also compared to stock
I have a feeling once I hear the Kline Im gonna have a difficult time suppressing my bowels. Especially in the T with less wound deadening.

Ikone

Just came across this.

Ikone

First part without all the talking:

ipse dixit

I rarely flat out disagree with you Pete, but I can't agree with that highlighted statement. Personally, I have yet to hear a flat-six that sounds good. Yes, the engine in the 991 GT3/RS is pretty epic, but only really at about 7500 RPM and above, because anything in the lower RPM range sounds (as one of my passengers said) like "a broken garbage truck with a loose muffler"

Needsdecaf

I agree with you on the 991.2.. It's just too quiet with PSE on to be PSE. My 991.1 has a much bigger difference.

Like you, I would prefer to get rid of the backfires. I think it's terrible, IMO.

And, ironically, I prefer the twin pipes to the quad. I may be the only person out there who actually LIKES the LOOK of the 991.2 PSE...even if it definitely reminds me of a Beetle.

From the pics in this thread, it looks like the entire gray plastic "insert" is different. Which, knowing Porsche, is attached to the bumper, requiring a completely different bumper. https://rennlist.com/forums/992/1128...auto-show.html

You may be able to cut it wider, as there is a metal ring around the inside. But not sure....

Argon_

The flat six does have more rattle to it than most engines. I love it.

Like Pete, I've never met a flat six I didn't enjoy.

Even a turbo one.

Ikone

All Flat Sixes aren't made the same. The 911 is a true Boxer. The only other production company using a true boxer is Subaru (WRX, STI, etc.). The sound between a standard flat and a true boxer will be different if all else is the same.
I don't think Germans use the term 'Flat' at all. I believe (and correct me if I'm wrong), this is an American term that comes from flattening a V engine (Flat V or 180º V). The difference is that Boxers have one crankpin per piston.

Anyway, just food for thought.