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Porsche > 991 (911) MK2 2016-2019 > 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19 > Exhausts >

Sport Silencers / Mufflers

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DISPLAYING 1 to 6 (of 6 products)
Akrapovic Slip-On Line Titanium Exhaust System for Porsche 991.2 Turbo / Turbo S 2017>> - 99111173171, 99111173140
5
Akrapovic Slip-On Line Titanium Exhaust System for Porsche 991.2 Turbo / Turbo S 2017>>
S-PO/TI/6H
Product Information
Product Information
The Akrapovič Slip-On Line for the Porsche 911 Turbo / Turbo S (991.2) is the first stage in the exhaust tuning process and gives this already outstanding car a further step in performance.


Fits:
Porsche 911 (991.2) Turbo / Turbo S 2017>>

Complete the slip-on system with titanium tailpipes in combination with carbon fiber diffuser in matte or high gloss finish (sold separately, part no
High Gloss DI-PO/CA/4/G or Matte DI-PO/CA/4/M).

Fitment notice: The system is designed to replace the Porsche sport exhaust system.



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Related, superseded, cross reference or alternative numbers for comparison.

S-PO
99111173171
99111173140

The product you are viewing cross references to these numbers
DesignTek Titanium sports exhaust system for Porsche 991.1 / 991.2 Turbo - 99111173170, 99111173171, 99111173140
4
DesignTek Titanium sports exhaust system for Porsche 991.1 / 991.2 Turbo
3601173170
Product Information
Product Information
A Voucher for £100 available when you buy this product. For more information CLICK HERE

DesignTek Titanium sports exhaust system.

designtek

Fits:
Porsche 991.1 Turbo
Porsche 991.2 Turbo

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Related, superseded, cross reference or alternative numbers for comparison.

3601173170
99111173170
99111173171
99111173140

The product you are viewing cross references to these numbers
Race sports exhaust silencer bypass x pipe. Porsche 991 turbo / turbo S - 99111173170, 99111173171, 99111173140 - 9M9111173171
4
Race sports exhaust silencer bypass x pipe. Porsche 991 turbo / turbo S
9M9111173171
Product Information
Product Information
Race sports exhaust silencer bypass x pipe.

Fits:
Porsche 991.1 turbo / turbo S - 2014 to 2016
Porsche 991.2 turbo / turbo S - 2016 to 2019

9m 991 Turbo Titanium  X-pipe centre by pass pipe

  • Exhaust reuses the stock tailpipes (tailpipes not included)
  • Direct bolt on
  • Fits all Porsche 991.1 and 991.2 Turbo / Turbo S
  • Made from Titanium TC4

9m 991 Turbo/S centre by pass pipe deletes the stock centre silencer from the rear of the car with a high flow  X-pipe design made from Titanium TC4 and gives the car the extra deep enhanced sound the muffled system is crying out for.



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

9M9111173171
99111173170
99111173171
99111173140

The product you are viewing cross references to these numbers
Sports exhaust rear silencer Porsche 911 turbo and 911 turbo S - 99111102790, 99111173170, 99111173140 - TSPO991T13.001.A
4
Sports exhaust rear silencer Porsche 911 turbo and 911 turbo S
TSPO991T13.001.A
Product Information
Product Information
Sports exhaust rear silencer Porsche 911 turbo and 911 turbo S (991.1 and 991.2) 2013-2019

tubi

Fits
Porsche 911 turbo 991.1
Porsche 911 turbo S 991.1
Porsche 911 turbo 991.2
Porsche 911 turbo S 991.2

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
This kit includes the central silencer without bypass valves and replaces the catalytic converters and the rear silencer. The kit is compatible with all 991.1 and 991.2 turbo and turbo S models
The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual

ECU REMAPPING
ENGINE LIGHT
Replacement or removal of components such as catalytic converters, GPFs and electric actuators may cause the engine warning light to come on. In this case, the installer must reprogram the software to eliminate the light

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

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 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

NO EXHAUST BYPASS VALVE
The exhaust system does not include a valve and always guarantees the most impressive sound. If the standard system includes one, control of the valve by both the engine ECU and by the driver via the specific control systems is no longer possible

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

TSPO991T13.001.A
99111102790
99111173170
99111173140

The product you are viewing cross references to these numbers
Sports exhaust rear silencer Porsche 911 turbo and 911 turbo S - 99111102790, 99111173170, 99111173140 - TSPO991T13.004.AK
3
Sports exhaust rear silencer Porsche 911 turbo and 911 turbo S
TSPO991T13.004.AK
Product Information
Product Information
Sports exhaust rear silencer Porsche 911 turbo and 911 turbo S with catalytic converters (991.1 and 991.2) 2013-2019

tubi

Fits
Porsche 911 turbo 991.1
Porsche 911 turbo S 991.1
Porsche 911 turbo 991.2
Porsche 911 turbo S 991.2

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
This kit includes the central silencer without bypass valves and replaces the catalytic converters and the rear silencer. The kit is compatible with all 991.1 and 991.2 turbo and turbo S models
The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual

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

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 of the main pipe of the exhaust system

NO EXHAUST BYPASS VALVE
The exhaust system does not include a valve and always guarantees the most impressive sound. If the standard system includes one, control of the valve by both the engine ECU and by the driver via the specific control systems is no longer possible

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

TSPO991T13.004.AK
99111102790
99111173170
99111173140

The product you are viewing cross references to these numbers
Sports exhaust rear silencer Porsche 991 turbo and turbo S
5
Sports exhaust rear silencer Porsche 991 turbo and turbo S
TSPOCSIT13.800.A
Product Information
Product Information
Sports exhaust rear silencer Porsche 991 turbo and turbo S 2013-2019

tubi

Fits
991.1 and 991.2
Porsche 991 turbo
Porsche 991 turbo S

The muffler can be fitted on all 911 Turbo and Turbo S versions, both 991.1 and 991.2
The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual


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

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 - 2 + 2 AT THE SIDES
The tailpipes are located low down at the sides of the car. There are two tailpipes 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
DISPLAYING 1 to 6 (of 6 products)
Also found on these pages
About Sport Silencers / Mufflers

Porsche Sport Silencers & Mufflers - Performance Sound & Exhaust Upgrades

Sport Silencers / Mufflers are designed to enhance the sound, performance, and driving character of your Porsche by improving exhaust gas flow and delivering a more engaging exhaust note. Compared to standard exhaust silencers, sports mufflers reduce restriction, sharpen throttle response, and provide a sportier tone that better reflects Porsche’s performance heritage.

Available from Design911, this category includes both genuine Porsche sport exhaust components and high-quality aftermarket performance mufflers, giving owners the choice between factory-engineered authenticity and performance-focused customisation.

What Do Sport Silencers / Mufflers Do?

Sport silencers optimise exhaust flow while enhancing sound quality.

Core Functions:

  • Reduce exhaust backpressure for improved engine breathing.
  • Enhance throttle response and power delivery.
  • Produce a deeper, sportier exhaust note.
  • Improve exhaust efficiency and flow dynamics.
  • Enhance the overall driving experience.

A well-designed sports muffler balances performance gains with refined sound control.

Why Do Standard Exhaust Silencers Fail or Fall Short?

Standard exhaust mufflers are designed primarily for noise reduction, emissions compliance, and longevity. Over time, common issues include:

  • Internal corrosion from condensation and heat cycles.
  • Restrictive baffling limiting exhaust flow.
  • Dull or muted exhaust sound.
  • Internal baffle breakdown causing rattles.
  • Reduced efficiency when paired with performance upgrades.

As these components age, both performance and sound quality can deteriorate.

Why Upgrade to Sport Silencers / Mufflers?

Sport silencers are engineered to improve both performance and auditory feedback.

Upgrade Benefits:

  • Improved exhaust flow and reduced restriction.
  • Enhanced exhaust sound without excessive drone.
  • Increased driving engagement and responsiveness.
  • Available in OEM Porsche or performance aftermarket options.
  • Ideal for road, touring, and spirited driving.

Upgrading delivers a more exciting exhaust character while supporting engine efficiency.

Highlights

  • Porsche sport silencer and muffler upgrades
  • OEM Porsche and premium aftermarket options
  • Improved exhaust sound, flow, and performance
  • Designed for performance-focused driving
  • High-quality materials for durability and reliability       

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