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Sport Silencers / Mufflers

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DISPLAYING 1 to 14 (of 14 products)
TP-PO991GT3/BOX
Product Information
Product Information
Akrapovic dB Reducer (Titanium)

Fits:
Porsche 911 GT3 (991.1) 2014 - 2017
Porsche 911 GT3 / GT3 Touring (991.2) 2018 - 2019
Porsche 911 GT3 / GT3 Touring (992.1) 2021 - 2024
Porsche 911 GT3 RS (991.1) 2014 - 2017
Porsche 911 GT3 RS (991.2) 2018 - 2020
Porsche 911 GT3 RS / S/T (992.1) 2022 - 2025

Designed and constructed exclusively for the Porsche 911 GT3 (991) and GT3 RS (991), the Akrapovič dB reducer (Titanium) is aimed at driving enthusiasts who need to keep the noise of the exhaust within approved levels during track-day use. Made from high-grade lightweight titanium, the dB reducer works like an additional muffler to allow extra expansion of the exhaust gases. It is easily fitted by simply removing the Akrapovič tailpipe set and then mounting the dB reducer in place. After installation, the Akrapovič dB reducer (Titanium) reduces dynamic sound levels* by approximately two or three decibels** while still retaining the unique Akrapovič sound and character. It is designed to fit and reduce the measured dynamic sound levels of all Akrapovič systems for the Porsche 911 GT3 (991) and GT3 RS: the Slip-On Line (Titanium), Evolution Line (Titanium), Sports Cup Line (Titanium), and Evolution Race Line (Titanium). The Akrapovič dB reducer (Titanium) is also totally compatible with the optional Akrapovič carbon-fibre diffuser, which is available for the Porsche 911 GT3 (991).

The Akrapovič dB reducer (Titanium) fits also to the stock exhaust system of the 911 GT3 (992) and GT3 RS (992).

*Dynamic sound levels apply to a moving vehicle and not the volume from a static vehicle.

**Noise reduction value is relative (or may vary) due to various noise-measuring methods used and external conditions at different racetracks.

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.



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Related, superseded, cross reference or alternative numbers for comparison.

TP-PO991GT3
TP-PO991GT3-BOX

The product you are viewing cross references to these numbers
S-PO/TI/23
Product Information
Product Information
Akrapovic Slip-On Race Line (Titanium).

Fits:
Porsche 911 GT3 (992.1) 2021 - 2024
Porsche 911 GT3 Touring (992.1)  2021 - 2024
Porsche 911 GT3 RS (992.1) 2022 - 2025
Porsche 911 S/T (992.1) 2022 - 2025

The Akrapovič Slip-On Race Line (Titanium) is a precision-engineered exhaust system that brings out the true character and performance of the Porsche 911 GT3, GT3 Touring, GT3 RS and S/T 992.1. Crafted entirely from lightweight, high-grade titanium, this system is designed to enhance every aspect of the driving experience—from sound and performance to weight savings and aesthetics. More than just an exhaust, it’s the finishing touch the 992 deserves and how it should have come from the factory. With motorsport-inspired engineering and a focus on lightweight performance, this system sets a new benchmark for track-focused upgrades.

Sound

The Akrapovič Slip-On Race Line delivers a +4.1 dB increase, enhancing the natural tone of Porsche’s iconic flat-six engine. It produces a smooth, rich sound at cruising speeds and transitions to a sportier, more aggressive note at higher revs. The housing of the exhaust valves – tailored to optimise gas flow – and the collectors in the muffler are cast in Akrapovič’s in-house foundry for precision and durability. This system ensures a dynamic and engaging exhaust note while eliminating intrusive droning, making it ideal for driving in all conditions.

Performance

The Akrapovič system for the 992 is engineered to maximise performance on the track by improving exhaust flow and reducing back pressure, all while achieving significant weight savings. This freer-flowing titanium design sharpens throttle response and enhances acceleration for a more engaging driving experience. No ECU remap is required when stock headers are retained and the Adapter Set is installed. However, for those upgrading to a full Evolution Line system with the Akrapovič Header Set, remapping the ECU is recommended to avoid Check Engine warning signals and ensure optimal performance.

Porsche 911 GT3 / GT3 Touring (992)
• Adapter Set (SS) with Stock Headers (P-CP034): +8.8 hp at 2,900 rpm, +17.8 ft-lb at 2,400 rpm, and 3.5 kg (20.7%) weight savings.
• Evolution Header Set (Titanium) (E-PO/T/7): +22.6 hp at 4,550 rpm, +26.0 ft-lb at 4,500 rpm, and an additional 3.8 kg weight reduction (28% lighter than stock headers).

Porsche 911 GT3 RS / S/T (992)
• Adapter Set (SS) with Stock Headers (P-CP034): +14.1 hp at 2,600 rpm, +28.1 ft-lb at 2,600 rpm, and 3.5 kg (20.7%) weight savings.
• Evolution Header Set (Titanium) (E-PO/T/9): +19.6 hp at 2,600 rpm, +36.4 ft-lb at 2,600 rpm, and an additional 3.8 kg weight reduction (28% lighter than stock headers).

These options give owners the flexibility to choose the setup that best matches their performance needs, whether retaining the factory headers for simplicity or upgrading to a full titanium system for maximum gains.

Design

Meticulously designed to match the Porsche 911’s iconic styling, the Slip-On Race Line combines functionality and aesthetics. The twin titanium tailpipes feature a sandblasted and coated finish, with six imprints on the inner sleeve to mirror the engine’s six cylinders. Akrapovič’s attention to detail extends to the in-house cast valve housings and muffler collectors, ensuring exceptional durability and performance. The lightweight construction is engineered to fit seamlessly within the car’s underbody, delivering both form and function for the ultimate track experience. Modern exhaust regulations often restrict the true character of performance cars, but Akrapovič’s Slip-On Race Line (Titanium) brings the Porsche 911 GT3 and GT3 RS to life. With its lightweight titanium construction, thrilling sound, and race-proven performance, this system is the ultimate upgrade for track enthusiasts. Designed and built for seamless integration, this is a hardware upgrade with no compromises.

This system fits also on vehicles equipped with Otto particulate filter (OPF).

If fitted with the stock headers in place, the system requires the P-CP034 Slip-On Race Line Adapter (SS) as a mandatory part for installation.

For clients intending to install the complete exhaust system, the E-PO/T/7 Evolution Header Set (Titanium) must be ordered separately.

Please notice that you may need to order new original Porsche V-clamps that fix the link pipes onto the headers, in case they are damaged during the removal of the stock exhaust.

Please note: that the product shown in the pictures may present the Slip-On Race Line (Titanium) in combination with the Evolution Header Set (Titanium) or in combination with the Slip-On Race Line Adapter (SS).

THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.



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

S-PO
S-PO
9GT251052F
9GT251052G
9GT251052J
9GT251052D
9GT251052K
9GT251052H

The product you are viewing cross references to these numbers
Best Product
3606109929
Product Information
Product Information
Exhaust sport switchable silencer in titanium.

designtek


Fits:
Porsche 992.1 Carrera 3.0L
Porsche 992.1 Turbo 3.8L

  • The Exhaust Sport switchable Silencer is a performance upgrade designed specifically for Porsche 992 Carrera and Turbo models.
  • Made out of Titanium
  • This silencer replaces the stock exhaust system with a adjustable throttle. The motors are not included and would have to be trannsferred over from old exhaust 
  • The switchable system allows drivers to switch between different modes, offering a quiet and more subdued exhaust note for daily driving, and a louder, more aggressive sound for spirited driving or track days.
  • The upgraded silencer enhances the overall exhaust flow, reducing backpressure and increasing horsepower and torque output.
  • It can provide a deeper, more exhilarating exhaust note, offering a more sporty and engaging driving experience.
  • Consider local regulations and laws regarding emissions and noise levels before purchasing and installing this upgrade.



Related reference numbers
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3606109929
992251052A
992298019
992251053A
992298019A
992251055
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992251057B
992298019C

The product you are viewing cross references to these numbers
Best Price
SSXPO174
Product Information
Product Information
Milltek Sports Exhaust Rear Silencer With Brushed Titanium GT-100 Tailpipe Trims.

Fits:
Porsche 992.1 GT3 2021>>

Rear Silencer - Works With Porsche Sports Exhaust (PSE) Switch Valves

Pipe Diameter: 2.76" (70.00mm)
Tailpipe: 100mm GT100

Parts Assembly:
MSPO273: Rear Silencer Assembly Inc Valves
MSPO274: Trim Mounting Plate (Cerakote Black)
MSTIP201: x2 4.0" Brushed Titanium Tips

Item Is Special Order
Delivery Time Approx 5-6 Weeks

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SSXPO175
Product Information
Product Information
Milltek Sports Exhaust Rear Silencer With Burnt Titanium GT-100 Tailpipe Trims.

Fits:
Porsche 992.1 GT3 2021>>

Rear Silencer - Works With Porsche Sports Exhaust (PSE) Switch Valves

Pipe Diameter: 2.76" (70.00mm)
Tailpipe: 100mm GT100

Parts Assembly:
MSPO273: Rear Silencer Assembly inc Valves
MSPO274: Trim Mounting Plate (Cerakote Black)
MSTIP221: x2 4.0" Burnt Ti Trims

Item Is Special Order
Delivery Time Approx 5-6 weeks

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SSXPO175
9GT251052F
9GT251052G
9GT251052D
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SSXPO173
Product Information
Product Information
Milltek Sports Exhaust Rear Silencer With Cerakote Black GT-100 Tailpipe Trims.

Fits:
Porsche 992.1 GT3 2021>>

Rear Silencer - Works With Porsche Sports Exhaust (PSE) Switch Valves

Pipe Diameter: 2.76" (70.00mm)
Tailpipe: 100mm GT100B

Parts Assembly:
MSPO273: Rear Silencer Assembly inc Valves
MSPO274: Trim Mounting Plate (Cerakote Black)
MSTIP200: x2 4.0" Cerakote Black Tips

Item Is Special Order
Delivery Time Approx 5-6 weeks

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SSXPO173
9GT251052F
9GT251052G
9GT251052D
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SSXPO172
Product Information
Product Information
Milltek Sports Exhaust Rear Silencer With Polished GT-100 Tailpipe Trims.

Fits:
Porsche 992.1 GT3 2021>>

Rear Silencer - Works With Porsche Sports Exhaust (PSE) Switch Valves

Pipe Diameter: 2.76" (70.00mm)
Tailpipe: 100mm GT100

Parts Assembly:
MSPO273: Rear Silencer Assembly inc Valves
MSPO274: Trim Mounting Plate (Cerakote Black)
MSTIP199: x2 4.0" Polished Tips

Item Is Special Order
Delivery Time Approx 5-6 Weeks

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SSXPO172
9GT251052F
9GT251052G
9GT251052D
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Best Price
SSXPO171
Product Information
Product Information
Milltek Sports Exhaust Rear Silencer

Fits:
Porsche 992.1 GT3 2021>>

Rear Silencer - Works With Porsche Sports Exhaust (PSE) Switch Valves And Re-Uses Original Tailpipe Trims

Pipe Diameter: 2.76" (70.00mm)

Parts Assembly:
MSPO273: Rear Silencer Assembly Inc Valves

Item is Special Order
Delivery Time Approx 5-6 Weeks

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SSXPO171
9GT251052F
9GT251052G
9GT251052D
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SSXPO156
Product Information
Product Information
Milltek Signature Series Titanium Sports Exhaust Silencer Bypass.

Fits:
Porsche 911 (992) 3.0ltr Carrera 2S 2019>>
Porsche 911 (992) 3.0ltr Carrera 4S 2019>>
For Cars With Gasoline Particulate Filter (GPF) AND Porsche Sports Exhaust (PSE)

Pipe diameter - 76.20mm
Weight Saving Over Original Item - 9kg

Parts Assembly:
MSSPO100: LH Link Pipe to OE Catalytic Converter
MSSPO101: RH Link Pipe to OE Catalytic Converter
MSSPO102: LH Valved Outlet Pipe
MSSPO102: RH Valved Outlet Pipe
MSSPO104: x2 Inner Outlet Pipes

Please note: This is a special-order item manufactured to order. In some cases, please allow 5 – 6 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.

Related reference numbers
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SSXPO156
992251053A
992298019A

The product you are viewing cross references to these numbers
P-CP034
Product Information
Product Information
Slip-On Race Line Adapter Set (SS)

Fits:
Porsche 911 GT3 (992.1) 2021 - 2024
Porsche 911 GT3 Touring (992.1)  2021 - 2024
Porsche 911 GT3 RS (992.1) 2022 - 2025
Porsche 911 S/T (992.1) 2022 - 2025

The Slip-On Race Line Adapter Set (SS) is a mandatory component when installing the Akrapovič Slip-On Race Line (Titanium) and retaining the stock headers. Constructed from high-grade stainless steel, this adapter ensures optimal integration of the Slip-On Race Line system, delivering precise fitment and performance. Advanced insulation is incorporated to protect surrounding components from excess heat.

Topologically CFD-optimised and meticulously tested, the adapter ensures the Slip-On Race Line (Titanium) exhaust system delivers its characteristic performance and sound. For vehicles without particulate filters, plug inserts and nuts from the Akrapovič installation kit must be used to disable backpressure sensors.

 This adapter set is required if stock headers are retained. For those installing the Akrapovič Evolution Header Sets (E-PO/T/7 or E-PO/T/9), the adapter is not required, as the full Evolution system integrates directly with the Slip-On Race Line exhaust.


For vehicles without particulate filters, plug inserts and plug nuts from the Akrapovič installation kit must be used to disable the backpressure sensors.

THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.



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

P-CP034
P-CP034

The product you are viewing cross references to these numbers
Best Price
TSPO992C19.000.AT
Product Information
Product Information
Sports exhaust muffler straight pipe.

For cars with Standard Exhaust System
Original Porsche Oval Tail Pipe Trims Need to be Used


tubi

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
Best Price
TSPO991GT317.001.T
Product Information
Product Information
Sports exhaust rear silencer titanium straight pipe Porsche 911 GT3 GT3 RS and 911 R 2013-2019
Made from titanium
Straight pipe replaces rear centre silencer

tubi

FITS 991.1 and 991.2
Porsche 911 GT3 and GT3 RS 2014-2016
Porsche 911 GT3 and GT3 RS 2017-2019
Porsche 911 R 2016
NOT FOR 997

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

Replaces centre silencer and tailpipe trims

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 - ROLLED LIP
Tailpipe with external rolled lip

OUTER PIPE DIMENSION - 65mm
CENTRE TIP DIMENSION 50mm
The value refers to the external dimensions of the exhaust end tip

END TIPS FINISH - SANDBLASTED
Titanium is used sandblasted, completely free from flaws, in its natural colour, for a truly stunning appearance

END TIPS NUMBER AND POSITION - 3 CENTRAL
The end tips emerge from the centre

MATERIAL - TITANIUM
KSTi -1,2 ASN titanium alloy was specifically developed for motorsport exhaust systems. It guarantees excellent resistance to oxidation even at high temperatures, with mechanical characteristics similar to those of grade 2 titanium.

CENTRE SILENCER REMOVAL
Complete removal of the centre silencer minimises exhaust back pressure and delivers optimum results in terms of performance and weight reduction

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

TSPO991GT317.001.T
99711102792
99711102799
99111102790

The product you are viewing cross references to these numbers
Best Product
3606109927
Product Information
Product Information
Sports switchable X-Pipe exhaust.

designtek


Fits:
Porsche 992.1 Carrera 3.0L
Porsche 992.1 Turbo 3.8L

  • This Sports switchable X-Pipe exhaust is a performance upgrade designed specifically for Porsche 992 Carrera and Turbo models.
  • Made out of 304 grade stainless steel
  • This replaces the stock exhaust muffler with an adjustable X-Pipe. The motors are not included and would have to be transferred from the original exhaust 
  • The switchable system allows drivers to switch between 2 different modes, offering 50mm X-pipe improved scavenging and low-speed power, and a 70mm non-converging straight-through, more aggressive sound for spirited driving.
  • The upgraded exhaust enhances the overall exhaust flow, reducing backpressure and increasing horsepower and torque output.
  • Providing deeper, louder and more exhilarating exhaust notes, offering a more sporty and engaging driving experience.
  • Consider local regulations, noise levels and laws regarding emissions before purchasing and installing this upgrade.



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

3606109927
992251052A
992298019
992251053A
992298019A
992251055
992298019B
992251057B
992298019C

The product you are viewing cross references to these numbers
Best Price
9GT251697SIL
Product Information
Product Information
9m trackday silenced exhaust tailpipe set. 


Fits:
Porsche 992 GT3 - 2021 to 2024
Porsche 992 GT3 RS - 2021 to 2024
Porsche 992 ST - 2021 to 2024
Porsche 992 Touring - 2021 to 2024

Designed as a direct fit, tailpipe replacement to fit to original OEM Porsche silencer. 

Constructed from 304 stainless steel  with a lifetime guarantee they will reduce sound at static by 4db or more.

Simple to bolt on using the provided hardware, no more than 20 minutes.

Click 'Zoom in' for large parts diagram.
Replaces diagram ref no 1 or



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

9GT251697SIL
9GT251697B
9GT251697H
9GT251697G
9GT251697J

The product you are viewing cross references to these numbers
DISPLAYING 1 to 14 (of 14 products)
About Sport Silencers / Mufflers

Title: Upgrading Your Porsche's Exhaust System: Original Porsche vs. Aftermarket Mufflers and Sports Exhaust

Keywords: Porsche, exhaust mufflers, sports exhaust, upgrade, replacement, technical specifications, known issues, Design911, professional advice

Summary:

Original Porsche Exhaust Mufflers:

Designed and manufactured by Porsche for specific models

Engineered to meet stringent quality standards

Precisely tuned for optimal performance and sound

Maintains the authenticity and originality of your Porsche

Compatible with existing components and systems

Aftermarket Exhaust Mufflers:

Produced by third-party manufacturers specializing in performance upgrades

Offer a wide range of options for customization

Can enhance exhaust note, performance, and aesthetics

May provide better flow dynamics for improved engine efficiency

Consider compatibility and fitment with your Porsche model

Sports Exhaust Systems:

Designed to maximize performance and enhance the driving experience

Typically include larger diameter pipes, sportier mufflers, and optimized airflow

Offer increased horsepower and torque

Produce a more aggressive and exhilarating exhaust sound

Check local regulations regarding noise restrictions

When considering purchasing an exhaust muffler or sports exhaust for your Porsche, several factors should be considered. Firstly, determine your specific requirements, whether it's a slight improvement in sound or a significant performance boost. Research the technical specifications and compatibility of the chosen exhaust system with your Porsche model. Consider your budget and the reputation of the manufacturer or retailer. It's crucial to ensure the product is backed by warranties or guarantees.

At Design911, we can assist you in finding the correct exhaust part for your Porsche. Our knowledgeable team can offer professional advice based on your requirements and guide you through the selection process. We stock a wide range of original Porsche parts as well as reputable aftermarket options, ensuring you have access to high-quality choices. Trust Design911 to help you enhance your Porsche's performance and provide an unmatched driving experience.

Note: The summary provided above is a general overview of the benefits and considerations related to upgrading the exhaust system of a Porsche vehicle. It's always recommended to consult with a professional and consider individual vehicle specifications and regulations before making any modifications.

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