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Porsche 992 (911) MK1 2019-2024 Exhausts Switchable Silencers / Mufflers

Sports Exhaust Rear Silencers with Valves Stainless Steel. Porsche 997.1 C2 / C2S / C4 / C4S  ›  9M99711161100

Sports Exhaust Rear Silencers with Valves Stainless Steel. Porsche 997.1 C2 / C2S / C4 / C4S - 99711121102, 99711121103, 99711123102, 99711123103, 99711121202, 99711121203, 99711123202, 99711123203, 99711141103, 99711141104, 99711143103, 99711143104, 99711141203, 99711141204, 99711143203, 99711143204 - 9M99711161100
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9M99711161100
Product Information
Product Information

Ninemeister 9m Valved Sports Exhaust Rear Silencers – Stainless Steel

Transform the sound and driving experience of your Porsche 911 Carrera 997.1 with the Ninemeister 9m Valved Sports Exhaust Rear Silencers.

Fits:

  • Porsche 997 MK1 Carrera 2 3.6L 2005-08
  • Porsche 997 MK1 Carrera 2S 3.8L 2005-08
  • Porsche 997 MK1 Carrera 4 3.6L 2005-08
  • Porsche 997 MK1 Carrera 4S 3.8L 2005-08

Designed specifically for Porsche 997.1 this premium performance exhaust system delivers a deeper, richer and more aggressive sports car soundtrack while retaining the flexibility of quieter operation when required.

The electronically controlled exhaust valves allow the driver to switch between a refined exhaust tone and a more pronounced sports exhaust sound at the push of a button.

Manufactured from high-quality 304-grade stainless steel and precision welded for strength and durability, the system is designed as a direct replacement for the original rear silencers, requiring no cutting or welding.

Supplied complete with twin exhaust tailpipes, available in silver or black finish, and an exhaust valve control module, this is an ideal upgrade for Porsche owners seeking improved sound, throttle response and everyday driving enjoyment.

What Do the Ninemeister 9m Valved Sports Silencers Do?

The Ninemeister 9m sports exhaust system replaces the original rear silencers with performance-designed stainless steel units featuring electronically operated exhaust valves.

The valves allow the exhaust sound to be adjusted between quieter and louder settings, giving the driver greater control over the character of the engine.

With the valves in the quieter setting, the exhaust maintains a more restrained tone suitable for everyday driving.

When the valves are opened, the system produces a deeper and more aggressive flat-six soundtrack, enhancing the driving experience during acceleration and spirited driving.

Why Upgrade to Ninemeister 9m Sports Exhaust Silencers?

The original Porsche 997.1 Carrera exhaust system is designed to balance performance, comfort and refinement.

For owners wanting a more distinctive exhaust sound, the Ninemeister 9m system offers greater flexibility without sacrificing everyday usability.

Benefits include:

  • Deeper and more engaging Porsche flat-six exhaust note
  • Driver-selectable quiet and sports exhaust settings
  • Noticeable improvement in exhaust sound and throttle response
  • Electronically operated exhaust valves
  • Premium 304-grade stainless steel construction
  • Precision-welded design for strength and durability
  • Direct replacement for the original rear silencers
  • No cutting or welding required
  • Choice of silver or black twin tailpipes
  • Supplied with exhaust valve control module
  • Manufacturer's lifetime guarantee


Electronically Controlled Exhaust Valves

One of the main advantages of the Ninemeister 9m system is the ability to adjust the exhaust sound at the push of a button.

The supplied valve control module operates the exhaust valves, allowing the driver to select a quieter setting or a more pronounced sports exhaust tone.

This makes the system suitable for owners who want a more aggressive exhaust sound during enthusiastic driving without permanently committing to a louder exhaust configuration.

Why Choose 304-Grade Stainless Steel?

The Ninemeister 9m rear silencers are manufactured from premium 304-grade stainless steel, offering excellent resistance to corrosion, heat and everyday environmental exposure.

Unlike conventional mild-steel exhaust components, stainless steel provides improved protection against moisture, road salt and long-term deterioration.

Precision-welded construction further enhances the strength and durability of the exhaust system.

The silencers are supplied with a manufacturer's lifetime guarantee, subject to the applicable warranty terms and conditions.

Improved Exhaust Sound & Throttle Response

The Ninemeister 9m system is designed to deliver a noticeable improvement in the exhaust character of the Porsche 997.1 Carrera.

Its sports silencer design allows the naturally aspirated flat-six engine to produce a deeper, richer and more distinctive sound, particularly under acceleration.

The manufacturer also reports improved throttle response, contributing to a more engaging driving experience.

Specific power or torque gains are not stated and should not be assumed.

When Should the Sports Exhaust Be Fitted?

The Ninemeister 9m Valved Sports Exhaust is primarily a performance and sound upgrade rather than a routine service replacement.

It is ideal for owners who want to:

  • Enhance the original Porsche flat-six exhaust sound
  • Add selectable quiet and sports exhaust settings
  • Replace ageing or corroded original silencers
  • Upgrade to a durable stainless steel exhaust system
  • Improve the appearance of the rear exhaust tailpipes
  • Enjoy a more engaging driving experience
  • Retain everyday usability with adjustable exhaust volume

Check the vehicle's model year and exhaust configuration before ordering.

Installation Notes

The Ninemeister 9m Valved Sports Exhaust is designed as a direct bolt-on replacement for the factory rear silencers.

No cutting or welding is required when fitted to a compatible vehicle with the original exhaust mounting arrangement.

The supplied valve control module must be installed according to the manufacturer's instructions to ensure correct operation of the electronically controlled exhaust valves.

Professional installation is recommended. All exhaust connections, mounting points, electrical connections and clearances should be checked before the vehicle is returned to service.

Confirm local road-use noise regulations and any applicable vehicle approval requirements before installation.



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

9M99711161100
99711121102
99711121103
99711123102
99711123103
99711121202
99711121203
99711123202
99711123203
99711141103
99711141104
99711143103
99711143104
99711141203
99711141204
99711143203
99711143204

The product you are viewing cross references to these numbers
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weight: -8.4 kg
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The Slip-On Race system can be optionally combined with Link Pipe Set (Titanium). The addition of link pipes will require remapping the ECU.
Fitment notice: The system is designed to replace the Porsche sport exhaust system. In case you would like to install Akrapovič exhaust system on vehicles with non-sport stock exhaust, please request more information at official Akrapovič dealers.
THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.

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Sports exhaust muffler straight pipe Porsche 992 Carrera and Turbo with sports exhaust
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Sports exhaust muffler straight pipe Porsche 992 Carrera and Turbo 2019 onwards
For cars with Porsche Sports Exhaust (PSE)
This option can be recognised by having oval end tips.
Fits
Porsche 992 Carrera
Porsche 992 Carrera S
Porsche 992 Carrera 4
Porsche 992 Carrera 4S
Porsche 992 Carrera GTS
Porsche 992 Carrera Targa 4
Porsche 992 Carrera Targa 4S
Porsche 992 Turbo
Porsche 992 Turbo S
WITH OR WITHOUT GPF (GASOLINE PARTICULATE FILTER)
RACETRACK USE ONLY
These components are designed and developed for racetrack use and to maximise the car's performance. They are not street legal and must be installed by professionals in the sector
INSTALLATION
The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual
SOUND - STRAIGHT PIPE
The straight pipe version replaces the rear silencer/muffler and guarantees a direct path from the engine, removing all factors which may affect the acoustic tuning
END TIPS DESIGN - OE
The muffler must be used in conjunction with the original exhaust end tips
END TIPS NUMBER AND POSITION - 1 + 1 AT THE SIDES
The tailpipes are located low down at the sides of the car. There is one tailpipe at each side
MATERIAL
AISI 304 STAINLESS STEEL
A choice stainless steel ideal for aggressive environments where combustion emissions can cause serious chemical corrosion on other types of metal
MAIN PIPE DIMENSION - 70mm
This is the diameter of the main pipe of the exhaust system
EXHAUST VALVE - ELECTRIC
The exhaust system is complete with electric valve. The electric actuator is not included and the standard actuator already installed on the car must be used. Control of the original valve is still provided
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This system can only be fitted on cars equipped with the Porsche Sports Exhaust (PSE)
The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual
ECU REMAPPING - FOR PERFORMANCE
On turbo cars, catalytic converter replacement may modify turbocharger operating conditions and cause a deterioration of the torque delivery curve. To ensure full benefit from the new racing component, the engine's ECU must be reprogrammed to maximise performance. If the engine warning light comes on, the ECU must always be reprogrammed to eliminate it
SOUND - TUBI SOUND
Tubi Sound is the standard sound of Tubi Style exhausts, louder and more powerful than the original sound. This sound represents our brand
END TIPS DESIGN - OE
The muffler must be used in conjunction with the original exhaust end tips
END TIPS NUMBER AND POSITION - 1 + 1 AT THE SIDES
The tailpipes are located low down at the sides of the car. There is one tailpipe at each side
MATERIAL - AISI 304 STAINLESS STEEL
A choice stainless steel ideal for aggressive environments where combustion emissions can cause serious chemical corrosion on other types of metal
MAIN PIPE DIMENSION 65mm
This is the diameter in mm of the main pipe of the exhaust system
CATALYTIC CONVERTER REMOVAL
Complete removal of the catalytic converter minimises exhaust back pressure and delivers optimum results in terms of performance and weight reduction
EXHAUST VALVE - ELECTRIC
The exhaust system is complete with electric valve. The electric actuator is not included and the standard actuator already installed on the car must be used. Control of the original valve is still provided
HEAT SHIELDING - INSULATED
Tubi Style ensures maximum protection for components in critical and dangerous positions by using insulation made with the same technology employed by car manufacturers
Please note: sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1st March 2001. They can not be used on a public road and are not MOT compliant, they are designed for race and track cars only.