Porsche 992 Exhaust Valve Controller

Some cars use a vacuum pipe to control exhaust valves, Porsche 992's control them electronically - Our controller intercepts messages between the ECU and the Exhaust valves to dictate their positioning at any time. This can be controlled and customised through our very own 992noise app on your phone, which also displays as a CarPlay app when conntected to the car.

Even with PSE active, your car decides when to open the exhaust flap based on speed, load and revs. The 992noise controller keeps the valves open on your terms, regardless of driving mode or conditions.

At high revs and full throttle the sound is identical; the valves are open either way. The real difference is at idle and lower speeds: the car is noticeably throatier with more pops and bangs even in normal mode. On a trailing or closed throttle it remains quiet.

The configuration, flap setup and wiring is identical between PSE and non-PSE exhausts so you will also see a change in the sound of the vehicle with this controller.

In most cases, yes. The controller works with the exhaust valves themselves rather than the exhaust system as a whole, so what matters is how your aftermarket setup handles those valves. This isn't limited to particular brands: any valved system that keeps those electronic valves will work, and popular ones like Akrapovič, Fabspeed and Capristo are just a few examples. Two common setups both work well:

• Your aftermarket exhaust keeps and works around the original Porsche valves. The controller then fits and behaves exactly as it does on a standard car.
• Your aftermarket exhaust replaces the valves with like-for-like units that use the same actuators and connectors. These almost always work too, as the controller simply plugs in where the factory valves were.

The only time it won't apply is if your exhaust has removed the valves entirely (a valveless or straight-through system, so there's nothing to control), or uses a completely different valve type or connector. If you're not sure, send us an email describing your exhaust, or a photo of the valve connectors, and we'll gladly check before you order.

The 992noise controller does not modify your car in any way. It intercepts signals between your ECU and the exhaust valve actuators, nothing is written to the ECU, no wiring is cut and removing the controller returns the car to exactly its original state with no trace it was ever fitted.

Whether a dealer chooses to raise your controller as a concern is ultimately their decision and outside our control. We'd recommend checking with your dealer if this is important to you. What we can say with confidence is that the controller is fully reversible and leaves no evidence of having been installed.

The controller is specifically designed to prevent this, it simulates correct valve behaviour back to the ECU so the car sees exactly what it expects. For the vast majority of cars this works without issue.

In rare cases, particularly on cars that are more sensitive to valve signal changes, a warning light has occasionally appeared. If this happens, change the open method to slow in the app settings, this introduces a slower valve opening sequence that resolves the issue on most affected vehicles. If the warning persists, get in touch and we'll help you diagnose it.

The controller does not modify the exhaust system itself, your original factory exhaust remains completely unchanged. The controller simply influences when the existing exhaust valves open and close, which is something your car already does electronically as standard.

For UK MOT purposes, the exhaust is tested for emissions and noise at idle, neither of which are affected by the controller. As always, if you have specific concerns for your region we'd recommend checking local regulations, but we are not aware of any road legality issues with use of this product.

Potentially. Many circuits measure noise with fixed trackside microphones at set points, and because GPS Quiet Zones return the valves to normal automatically over any saved location, some owners set a zone over those meters so the car quietens as it passes and reopens afterwards.

It depends entirely on a reliable GPS signal and precise placement, and it doesn't change the car's noise elsewhere on track. Meeting a circuit's noise limits always remains the driver's responsibility. Think of it as a helpful side-benefit of Quiet Zones rather than a guaranteed solution.

The controller reflects genuine R&D, quality components and careful assembly, not a simple wiring loom. Compared to an aftermarket exhaust, it represents strong value for a significant and fully reversible improvement to your car's sound. More than one customer has told us it should cost more, and we'll take that as a compliment.

You could attempt to build something similar yourself, but you'd need time, patience, specialist tools and components that may well cost as much as the controller itself. Two years of refinement are built into the result.

The controller is primarily designed around Apple CarPlay and the iOS app, with support for Android and other devices via any modern browser. Visit the link below and install this page as an app for offline access. A full Android version is being developed (2026).

992noise.com/control

Yes. The 992noise app is free to download, and it includes a Simulator Mode that lets you explore the full app (valve controls, quiet zones and features) without a controller or car connected. It's a great way to try things out for yourself before you order.

Download the 992noise app on the App Store

We're actively working on compatibility with non-turbo 992s and the 992.2. Development requires hands-on access to a test vehicle, so progress depends on availability. If you have one of these cars in the UK and are happy to assist with testing, please get in touch. We'd love to hear from you.

No ramp or specialist tools required. The full process takes around 15–20 minutes: locate the valve actuators under the rear of the car, unplug the factory connectors from both actuators, plug in the controller looms, tuck and secure with the included wire ties, then pair with the app via Bluetooth.

Full step-by-step instructions and a video walkthrough are in the Installation section above, or download the PDF guide.

Controllers are assembled and typically shipped within a few days of ordering. UK delivery is 1–2 days once shipped. We ship worldwide: Europe is straightforward, and US orders typically have a brief customs hold which is normal and doesn't cause significant delays. During busy periods production may take a little longer; we'll always let you know upfront. For specific destinations, feel free to get in touch for an honest estimate.

The 992noise controller carries a 12-month warranty from the date of purchase. Always contact us before returning anything so we can diagnose the issue first.

If the fault is with the controller under normal use, such as hardware failure, connection issues or firmware errors, we will arrange repair or replacement and cover all return and re-delivery shipping costs at no charge to you.

If the issue results from physical damage, misuse or unauthorised modification, we will assess and quote for any repair work; shipping costs in that case are at the customer's expense.

After 12 months the formal warranty period ends, but we remain available to help diagnose and resolve any issues, just get in touch.

Read our full Refund & Returns Policy

It started with one 992 owner frustrated that the sports exhaust was only sporty occasionally, and who didn't want to modify the ECU or spend thousands on a new exhaust. That personal fix grew into 992noise, a small independent project now run by the two of us alongside our full-time jobs. We handle every order and enquiry ourselves.