JCD911S

I was trying to do some research on the PSE and read that due to EU regulations, the activated PSE will cut off at a certain speed.

Do the US spec units still have this speed control?

I'm going to install a different valved exhaust and want to retain the factory control and switch, but not if that cutout exists. Tried to make the determination by ear, but the sound isn't dramatic enough for me to tell if it changes at speed.

SecretAsianMan

Yes. In first it cuts out at 20mph, it's pretty audible with the windows down... It doesn't cut out 100% back to "sport mode off" but it gets noticeably quieter.

larrytrk

Just direct wire the new exhaust with an on/off switch, like, I, and a lot of others have done. Solves the problem!!!

Tcc1999

My flipping P0's (which I can't wait to get rid of) are so noisy I can barely hear the PSE unless I'm stopped.

JustinCase

Mine opens up about 40 mph and 4,000 rpm -- U.S. spec. If you can't tell the difference between ON and OFF then it probably isn't working. With mine, the difference is very clear (now that it's working again).

Edgy01

IF you do a search herein you will find that your question is answered rather extensively. All model 997s with PSE are the same, to meet Swiss noise abatement standards. Within the search you will find the speed range affected.

Here yo ugo: The factory PSE imposes a factory mandated (actually, a Swiss noise abatement mandate from between 45 and 75 kph) which seems to come at a bad time when it comes to appreciating the engine--but I live with it. For Americans: 27.9 mph through 46.5 mph.

larrytrk

Again, wire up with off/on switch, you control the sound.
Just don't go to Switzerland

JCD911S

At idle, I've taken a video of the valves actuating when I press the sport button, so I know they're working. But since the cutoff exists, I'll just use the supplied remote. Was just hoping to keep the install simple by using all the existing wiring and vacuum.

floatingkiwi

My NZ car pse works all the time, I have never noticed it cutting out.

WindyCityC2S

Sorry for the newbie question....what is a PO?

Tcc1999

Should have written Pirelli P-Zero.

GSIRM3

Do you know if the 997.2 PSE works in the same manner as the 997.1? I have a 2012 GTS and I cannot detect this cutting in and out of the PSE based on road speed.

mk85911

My 997.2 PSE does not cut in and out. And I recall a thread from a couple of years ago which stated that the 997.2 PSE didn't cut out, whereas the 997.1 did.

1990nein

Drive the car in 1st and feather the throttle around 2800-3200 rpm. Keep accelerating and you'll hear it cut out.

fskof

+1