Take Full Control of Your Porsche 992’s Exhaust with the KIES Valve Controller

If you own a Porsche 992 generation 911 — whether it’s a base Carrera, Carrera S, Carrera 4S, GTS, Turbo / Turbo S, or even a GT3 or GT3 RS  —  from the factory, Porsche programs the exhaust valves to only open partially at low RPM’s and increasingly open, as you climb the rev range. Even with the ‘Exhaust System’ button selected in Sport / Sport Plus,  the valves stay only partially open, keeping the car quieter than it needs to be while restricting air flow.

That’s where the KIES Valve Controller comes in.

What Is the KIES Valve Controller?

The KIES Valve Controller is a plug-and-play module that gives you complete manual control over your Porsche’s exhaust valves.

It simply plugs into your existing exhaust valve actuators — no splicing, coding, or complicated setup required.

With just a quick install, you can:

• Fully open the valves at any time for maximum sound and performance
  
  

• Easily switch back to factory operation whenever you want
  
  

For most models, the entire install can be done without lifting the car. No jack stands, no ramps, no lift required. (The 992.2 GTS models require removing the bumper)

Why Does Porsche Restrict the Valves?

Porsche’s stock valve logic is designed to meet noise regulations and comfort standards, not necessarily driver satisfaction.
That means even in “loud” modes (Sport / Sport+), the valves often stay partially closed until higher RPMs.

OEM Sport Exhaust -

Akrapovic Titanium Exhaust -

With the KIES Valve Controller, you can:

• Unlock the full exhaust tone of your engine at any RPM
  
  

• Keep your car quiet on demand, by reverting back to the OEM settings
  
  

• Improve exhaust flow and reduce backpressure when fully open
  
  

Compatible With OEM and Aftermarket Exhausts

The KIES Valve Controller works perfectly with both factory exhaust systems (Sport or non-Sport) and aftermarket exhausts that retain the OEM valve actuators.

Whether you’re running the stock setup or an upgraded system like the Akrapovic Titanium Exhaust (as shown in our example photos), the module integrates seamlessly.

No coding. No check-engine lights. No hassle.

Control at Your Fingertips

Each KIES Valve Controller comes with a compact remote that fits right on your key chain or can be tucked into the center console.
With the simple press of a button, you can toggle between:

• 1 = Open Mode – Full valves open, max sound
  
  

• 2 = Auto Mode – Reverts to Porsche’s factory logic

This gives you the best of both worlds: comfort when you want it, performance when you need it.

Reversible and Warranty-Friendly

The KIES Valve Controller is 100% reversible and can be removed at any time — leaving no trace and no warranty issues.

It uses factory connectors and doesn’t alter your ECU programming or vehicle wiring in any way.

If you ever need to return the car to stock, simply unplug it and reinstall the OEM connectors.
That’s it — you’re back to factory condition.

Installation Overview

For each of the 992 911 models, the installation is 90% the same with some small differences. For a full step by step guide and sound examples to hear the difference, click the links below to our YouTube channel!

992.1 Base, S, GTS, Turbo, & Turbo S   and   992.2 Base, S

Video Link HERE --> https://youtu.be/C6pWyWYFU1M

Product Link HERE --> https://www.kiesmotorsports.com/products/kies-992-porsche-dual-valve-controller-2020-911?_pos=2&_sid=ff36a896e&_ss=r

992.2 GTS

Video coming soon…

Product Link HERE --> https://www.kiesmotorsports.com/products/kies-motorsports-991-2-porsche-911-gt3-gt3-rs-and-982-boxter-s-gts-and-cayman-s-gts-valve-controller?_pos=2&_sid=996a0248a&_ss=r

992.1 GT3, GT3 RS, GT3 Touring  and  992.2 GT3, GT3 RS, GT3 Touring

Product Link HERE --> https://youtu.be/MuMDdfIC8P4

Product Link HERE --> https://www.kiesmotorsports.com/products/kies-motorsports-991-2-porsche-911-gt3-gt3-rs-and-982-boxter-s-gts-and-cayman-s-gts-valve-controller?_pos=2&_sid=996a0248a&_ss=r

Final Thoughts

For many 911 owners, sound is half the experience — and the KIES Valve Controller finally gives you the freedom to hear your Porsche the way it was meant to sound.