The First Step to a Better Porsche Soundtrack
Looking for more volume from your Porsche 991.2 GT3, GT3 Touring or GT3 RS without the high cost of a full exhaust system? The Cargraphic Exhaust Valve Controller is the perfect first upgrade. It allows you to unlock the true acoustic potential of your engine by giving you total manual control over the factory exhaust valves.
Whether you have the standard or the Sport Exhaust system, the factory ECU often forces the valves to close at certain RPMs to meet noise regulations. This high-quality German unit bypasses those restrictions, giving you the aggressive tone you want, exactly when you want it.
Precision German Engineering
Cargraphic is world-renowned for Porsche tuning, and these valve controllers are no exception.
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High-Quality Units: Designed, developed, and manufactured in Germany.
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Rigorous Testing: These units are extensively track and road-tested to ensure they withstand the heat and vibration of high-performance driving.
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Peace of Mind: Every unit comes with a 12-month warranty, ensuring long-term reliability for your 991.
2-Mode Functionality
The unit is installed "Plug & Play" between the exhaust valves and the factory control unit, allowing you to switch between two distinct profiles via a wireless remote:
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Sport Mode: Exhaust valves are held permanently open across the entire RPM range. This is the simplest and most affordable way to increase exhaust noise and engagement instantly.
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Automatic Mode: Returns the car to the factory setting, allowing the OEM ECU to manage valve timing as originally intended
3-Mode Functionality
The unit is installed "Plug & Play" between the exhaust valves and the factory control unit, allowing you to switch between two distinct profiles via a wireless remote:
-
Sport Mode: Exhaust valves are held permanently open across the entire RPM range. This is the simplest and most affordable way to increase exhaust noise and engagement instantly.
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Automatic Mode: Returns the car to the factory setting, allowing the OEM ECU to manage valve timing as originally intended.
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Comfort Mode: Exhaust valves are held permanently closed across the entire RPM range.
Vehicle Compatibility
This specific unit is designed for a perfect fit on the following models:
- Porsche 911 (991.2) GT3 | GT3 Touring | GT3 RS (4.0L) without OPF
- Porsche 911 (997.1) GT3 | GT3 RS (3.6L)
- Porsche 911 (997.2) GT3 | GT3 RS (3.8L) | GT3 RS (4.0L)
- Porsche 981 Cayman / Boxster / Spyder (All Models Including GT4)
- Porsche 718 Boxster / Cayman 2.0L & 2.5L
- Porsche 991.1 GT3 3.8L / GT3 RS 4.0L / R 4.0L
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Porsche 970.2 Panamera GTS 4.8L V8 / Turbo / Turbo S 4.8L V8
Professional Fitting in Stratford-upon-Avon
While this is a straightforward installation, we offer a professional fitting service at our String Theory Garage headquarters in Stratford-upon-Avon.
How to book: Simply select "Collection from String Theory" as your delivery option at checkout. Our team will then contact you to arrange a convenient booking slot to have your controller installed by our specialists.
The Full Cargraphic Range
As proud partners of Cargraphic, we have access to their entire catalogue of performance parts. If you are looking for a specific Cargraphic product for a different Porsche model or a full exhaust upgrade, please contact us—we can source and fit the complete range for any vehicle.
Note: Permanent closing of the exhaust valves, especially under full power, can lead to engine damage.
