Please wait… 
Please wait while we process your order,
do not press the back button… 
Design911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://d911api.datadial.net/images/schemaLogo.png https://d911api.datadial.net/images/schemaLogo.png https://d911api.datadial.net Facebook Instagram
Porsche specialists based in the UK
Porsche > Cayenne 92A (958) 2010-2017 > Exhausts > Switchable Silencers / Mufflers >

Sports Exhaust Silencer, Stainless Steel Valved. Porsche 987.1 Boxster / 987.1 Cayman 2005–08  ❭  9MSV98711311731

Sports Exhaust Silencer, Stainless Steel Valved. Porsche 987.1 Boxster / 987.1 Cayman 2005–08 - 98711311200, 98711311204, 98711311205, 98711311801, 98711311802, 98711311803, 98711311400, 98711311402, 98711311403, 98711311100, 987113111004, 98711311105, 98711311701, 98711311702, 98711311703, 98711311300, 98711311302, 98711311303 - 9MSV98711311731
3
Check vehicle fitment
9MSV98711311731
Product Information
Product Information

9m Sports Stainless Steel Valved Silencer 

Upgrade the sound and character of your Porsche 987 Boxster or Cayman with the 9m Sports Stainless Steel Valved Silencer. The valved design gives the driver control over the exhaust character at the push of a button, allowing you to switch between a quieter exhaust note and a louder, more sporting tone. 9m also specifies a noticeable improvement in sports car sound and throttle response.

Fits:

  • Porsche Boxster 987 2.7L 2005-08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005-08/08
  • Porsche Cayman 2.7L 987C 2006-08
  • Porsche Cayman S 3.4L 987C 2005-08

Manufactured from precision-welded 304-grade stainless steel, the system is designed as a direct replacement for the original Porsche rear silencer, with no cutting or welding required.

What Does the Valved Exhaust Do?

The exhaust valves alter the path of the exhaust gases through the silencer. This allows the system to provide a more subdued sound when required and a more pronounced sports exhaust note when the valves are opened.

This makes it particularly suitable for a road-going Porsche where you may want a quieter exhaust during normal driving while retaining the option of a more engaging sound when desired.

Why Upgrade?

The factory exhaust is designed to balance refinement, noise regulations and performance. For owners looking for greater exhaust character, the 9m valved silencer provides additional sound without permanently committing the car to a louder exhaust note.

The X-pipe-style system also gives the rear of the car a more purposeful appearance, with a choice of black or silver slash-cut exhaust tips.

Direct Bolt-On Installation

The 9m system is designed to replace the OEM muffler using a direct bolt-on installation, requiring no cutting or welding. This makes it a straightforward exhaust upgrade without unnecessary modification to the vehicle.

9m states that the silencer complies with emissions regulations and does not trigger the Check Engine Light.

Key Features

  • 9m valved sports rear silencer
  • Precision-welded 304-grade stainless steel
  • Switchable quiet and sports exhaust sound
  • Push-button valve control X-pipe-style configuration
  • Improved sports car exhaust note
  • Noticeable improvement in throttle response claimed by 9m
  • Direct replacement for the OEM muffler
  • Direct bolt-on installation
  • No cutting or welding required
  • Choice of black or silver slash-cut tips
  • Designed not to trigger the Check Engine Light

Porsche 987 Boxster & Cayman Valved Sports Exhaust Systems

A valved sports exhaust is an ideal upgrade for Porsche Boxster and Cayman owners who want additional engine and exhaust character without having a permanently loud system.

The 9m stainless steel valved silencer combines switchable sound control with durable 304-grade stainless steel construction and direct bolt-on fitment. Opening the valves provides a more sporting exhaust note, while the quieter setting is better suited to relaxed road driving.

For owners searching for a Porsche 987 Boxster sports exhaust, Cayman valved exhaust, stainless steel Porsche rear silencer or direct-fit Porsche 987 exhaust upgrade, the 9m system provides a practical combination of sound, construction quality and straightforward installation.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9MSV98711311731
98711311200
98711311204
98711311205
98711311801
98711311802
98711311803
98711311400
98711311402
98711311403
98711311100
987113111004
98711311105
98711311701
98711311702
98711311703
98711311300
98711311302
98711311303

The product you are viewing cross references to these numbers
Related products
Akrapovic sound kit. Porsche 958 Cayenne Hybrid / Turbo - P-HF1199
2
Akrapovic sound kit. Porsche 958 Cayenne Hybrid / Turbo
P-HF872
Product Information
Product Information
Akrapovič sound kit.

Fits:
Porsche 958 Cayenne S Hybrid 2010 - 2013
Porsche 958 Cayenne Turbo 2010 - 2014
Porsche 958 Cayenne Turbo S 2013 - 2014

The optional Akrapovič Sound Kit enables owners of selected Akrapovič car exhausts to control the sound of the system from the cockpit of their machine. Using Akrapovič technology, drivers can easily switch between the quiet mode and a sportier sound. With the use of a receiver to drive the actuators that open or close the valves at the end of the exhaust system, drivers can use the Sound Remote Controller or the new smartphone app (for iOS and Android) to regulate the valves.

Pictures are symbolic.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

P-HF872
P-HF1199

The product you are viewing cross references to these numbers
Akrapovic sound kit. Porsche Cayenne Turbo (958 FL) 2015-17 - P-HF1003 - P-HF1003
2
Akrapovic sound kit. Porsche Cayenne Turbo (958 FL) 2015-17
P-HF1003
Product Information
Product Information
Akrapovič sound kit.

Fits:
Porsche    Cayenne Turbo (958 FL)    2015 - 2017

The optional Akrapovič Sound Kit enables owners of selected Akrapovič car exhausts to control the sound of the system from the cockpit of their machine. Using Akrapovič technology, drivers can easily switch between the quiet mode and a sportier sound. With the use of a receiver to drive the actuators that open or close the valves at the end of the exhaust system, drivers can use the Sound Remote Controller or the new smartphone app (for iOS and Android) to regulate the valves.

If the car is not equipped with Porsche performance exhaust and you want to use the Akrapovic sound kit than Akrapovic sound kit P-HF1003 with Actuator set P-HF1006 has to be ordered.

If the car is equipped with Porsche performance exhaust with electric valve actuators than actuator set P-HF1006 is required and the Akrapovic sound kit P-HF1003 can not be used. The valves are opened or closed with the valve button inside the car.

When fitted with the optional Akrapovič Sound Kit, ECE type approval is no longer valid.


Pictures are symbolic.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

P-HF1003
P-HF1003

The product you are viewing cross references to these numbers
Universal Exhaust Vacuum Valve Controller - 9MUVCKIT
2
Universal Exhaust Vacuum Valve Controller
9MUVCKIT
Product Information
Product Information

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.