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- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Sports exhaust valved bypass Z pipe silencer in titanium
Fits:Porsche 718 Cayman GT4 RS
Porsche 718 Boxster Spyder RS
9m GT4RS / Spyder RS titanium Z pipe silencer.
Reducing turbulence with the exhaust and blending the combustion pulses from both sides of the engine. The result is a more aggressive sound and a true RS experience.
- Constructed from Aerospace grade TC4 titanium precision welded with a lifetime guarantee
- Weighing in at 6kg in total with a weight saving of 9kg over the stock silencer(15kg)
- Fits all Porsche 718 4.0ltr GT4RS /Spyder RS models
- Direct bolt on installation
- Fits original exhaust tips
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9M9GT25105B
The product you are viewing cross references to these numbers
- Porsche 976 Panamera V6 2.9L 2023>>
- Porsche 976 Panamera 4 V6 2.9L 2023>>
- Porsche 976 Panamera 4 E-Hybrid V6 2.9L 2023>>
- Porsche 976 Panamera 4S E-Hybrid V6 2.9L 2023>>
- Porsche 976 Panamera GTS V8 4.0L 2023>>
- Porsche 976 Panamera Turbo E-Hybrid V8 4.0L 2023>>
- Porsche 976 Panamera Turbo S E-Hybrid V8 4.0L 2023>>
Akrapovič Sound Kit – Exhaust Valve Control System
Take full control of your Akrapovič exhaust system with the
Akrapovič Sound Kit, designed for Porsche Panamera 976 V6, V8, and Turbo S
E-Hybrid models.
Fits:
- Porsche 976 Panamera V6 2.9L 2023>>
- Porsche 976 Panamera 4 V6 2.9L 2023>>
- Porsche 976 Panamera 4 E-Hybrid V6 2.9L 2023>>
- Porsche 976 Panamera 4S E-Hybrid V6 2.9L 2023>>
- Porsche 976 Panamera GTS V8 4.0L 2023>>
- Porsche 976 Panamera Turbo E-Hybrid V8 4.0L 2023>>
- Porsche 976 Panamera Turbo S E-Hybrid V8 4.0L 2023>>
Using Akrapovič’s advanced valve control technology, this system enhances the driving experience by putting sound control directly in your hands.
Dynamic Exhaust Sound Control
The Akrapovič Sound Kit enables full control over exhaust valve operation:
• Open valves for a louder, race-inspired exhaust sound
• Close valves for a quieter, refined driving experience
• Use regulated mode for a balanced mix of comfort and performance
This flexibility allows you to tailor your exhaust note to suit every driving situation.
Seamless Integration & Easy Operation
The system integrates directly with the Akrapovič exhaust setup via a receiver unit (included in the Evolution system), controlling actuators positioned at the rear of the exhaust.
Using the Akrapovič Sound Remote Controller, you can instantly adjust the sound profile from inside the vehicle, offering complete convenience and control.
Key Features & Benefits
• Full control over exhaust valve operation
• Switch between quiet, sporty, and balanced modes
• Remote-controlled sound adjustment from the cockpit
• Seamless integration with Akrapovič exhaust systems
• Enhances driving experience and vehicle character
• Simple and intuitive operation
Important Notes
- Use of the Akrapovič Sound Kit
invalidates ECE type approval
- Designed for use with Akrapovič exhaust systems
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9m Universal Exhaust Vacuum Valve Controller
Take greater control of a vacuum-operated sports exhaust system with the 9m Universal Exhaust Vacuum Valve Controller.
Developed by Ninemeister to enhance the functionality of exhaust valve systems, the controller allows the exhaust valves to be operated remotely using the supplied key fobs. The kit uses a vacuum control module and is designed for straightforward installation without cutting or splicing into the vehicle's factory wiring or fuses.
What Does the Exhaust Valve Controller Do?
Many sports exhaust systems use vacuum-operated valves to change the route exhaust gases take through the silencer. Opening or closing these valves alters the exhaust sound.
The 9m controller provides additional control over this system, allowing the driver to operate compatible vacuum exhaust valves using a dedicated remote key fob.
This is particularly useful for vehicles fitted with a valved sports exhaust where the owner wants convenient independent control of the exhaust valves.
Why Upgrade?
A dedicated exhaust valve controller gives the driver greater control over when the exhaust valves operate.
The 9m system is also designed to minimise installation complexity. Power is supplied through a cigarette lighter adaptor, so there is no requirement to cut or splice into the factory wiring or fuse system.
Kit Includes
- 9m vacuum control module
- Two remote-control key fobs
- Vacuum tubing
- Cigarette lighter power adaptor
- High-quality remotes with Ninemeister logo
- Components required for straightforward connection and installation
Key Features
- Universal vacuum exhaust valve controller
- Remote operation of compatible exhaust valves
- Supplied with two key fobs
- Simple power connection
- No cutting of factory wiring required
- No splicing into factory fuses
- Ideal for compatible valved sports exhaust systems
- Ninemeister branded remote controls
Universal Vacuum Exhaust Valve Controllers
A vacuum exhaust valve controller is an ideal addition to a compatible valved sports exhaust, giving the driver convenient remote control over exhaust valve operation.
Rather than relying solely on the vehicle's original exhaust valve strategy, the 9m controller provides a dedicated remote-control solution while avoiding permanent modifications to the factory wiring.
For Porsche owners searching for a remote exhaust valve controller, vacuum-operated sports exhaust controller or universal valved exhaust remote, the 9m kit provides a simple solution suitable for compatible vacuum-controlled exhaust systems.