would be cool if someone can come up with large buttons that can control the exhaust valves that mount to cup holder or something. a fist sized button that would open/close valve would be useful for track use.

as for the valve, with base gt3, stock control vs cargraphics difference was significant, but in 3rs, i notice stock vs aftermarket valve controller difference is pretty minimal.

 

I've also just put an order in from The Netherlands.
These controllers are not yet widely known here. They seem to be the easiest to install.
Looking forward and will post once received and installed!

 

Installing later today

 

Direct web link for those interested:

https://11mode.com/products/porsche-911-gt3-rs-992

 

Drivers side pictures.
maybe 30 seconds to install?

passenger side a little bit more difficult, as the tab is facing inside. Not impossible. Long nose plied helps. No lift or diffuser removal.

more noticeable idling and cold start. From 1-3k rpm a deeper sound comes to live. Mixes up as the revs go up to the usual. As expected given valves fully open normally after that.

worth the money and effort. Easy to reverse. No fiddling with the engine bay. Homelink successfully programmed.