Sport Silencers / Mufflers

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.

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TP-PO991GT3

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Akrapovic Slip-On Line Titanium Exhaust

Fits:
Porsche 997.1 GT3 3.6L 2007>>
Porsche 997.2 GT3 3.8L 2010>>
Porsche 991 (911) GT3 2014>>
Porsche 991 (911) GT3 RS 2014>>

Akrapovič's Slip-On Line represents the first step in the exhaust system tuning process and the muffler can easily be installed onto the Porsche GT3's original system. Built from hi-grade titanium and finished with two eye-catching double round tailpipes, this entry system makes the GT3 more powerful and lighter, and gives the car that unique Akrapovič sound. Designed to make the car stand out from the crowd and increase its appeal even more, the visual delight of the Akrapovič Slip-On can be further enhanced with the addition of an optional carbon- fibre rear diffuser. Beautifully handcrafted from the finest materials and designed to enrich the exclusive look of the titanium exhaust system, the diffuser is a must-have extra for any discerning owner.

TECHNICAL DATA
* measured with: Porsche 911 GT3 RS (991) 2014

Maximum power:
- kW: plus 4.5 at 7800 rpm
- HP (m): plus 6.1 at 7800 rpm
- HP (i): plus 6 at 7800 rpm

Maximum torque:
- Nm: plus 4.9 at 8100 rpm
- lb-ft: plus 3.6 at 8100 rpm

Weight:
- minus 1.1 kg / 2.4 lb

*** Mandatory Extra Part Required
Tail pipe set (Titanium) - part no TP-PO991RS/H/T

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MTP-PO997GT3H

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Akrapovic Slip-On Line Titanium Exhaust System

Fits:
Porsche 991 (911) Turbo/Turbo S 2014>>

The Akrapovič Slip-On Line for the Porsche 911 Turbo / Turbo S is the first stage in the exhaust tuning process and gives this already outstanding car a further step in performance. Made from a high-grade titanium alloy and finished with exquisitely handcrafted carbon fibre and titanium tailpipes, the Slip-On Line reduces weight to aid with handling. Akrapovič's sound engineers have also created a deep and unique sound to make the Porsche 911 Turbo / Turbo S stand out even more. The Slip-On Line can also be used in conjunction with the optional Akrapovič link pipes—with or without cats—which can be added to the system to take the performance to another level. The Slip-On Line is superbly finished with a coating to give greater durability, without altering the look or performance of the system.

TECHNICAL DATA
** measured with: Porsche 911 Turbo/Turbo S (991) 2014

Maximum power:
- kW : plus 5.8 at 3300 rpm
- HP (m) : plus 7.9 at 3300 rpm
- HP (i) : plus 7.8 at 3300 rpm

Maximum torque:
- Nm : plus 14.8 at 2600 rpm
- lb-ft : plus 10.9 at 2600 rpm

Weight:
- minus 6.4 kg / 14.1 lb

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S-PO991TSO-HT

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Akrapovic Slip-On race line (Titanium).

Fits:
Porsche 911 Speedster - OPF/GPF 2019 - 2020
Porsche 911 GT3 RS (991.2) 2018 - 2020
Porsche 911 GT3 RS (991.2) - OPF/GPF 2019 - 2020
Porsche 911 GT3 / GT3 Touring (991.2) 2018 - 2019
Porsche 911 GT3 (991.1) 2014 - 2017

Elevate your Porsche with the Akrapovič Slip-On Race Line Exhaust System, expertly designed to integrate seamlessly with the original system of your Porsche 911. This system, constructed from high-grade titanium and highlighted by dual round tailpipes, boosts your car’s power and reduces its weight while delivering the distinctive, sporty Akrapovič sound that resonates with racing heritage.

Key Features:

High-Grade Titanium Construction: Ensures durability and a significant reduction in overall weight.
Dual Round Tailpipes: Provide an aggressive aesthetic and contribute to the enhanced exhaust flow.
Optional Carbon-Fibre Diffuser: Available to increase visual appeal and aerodynamic efficiency. Note: Specific tail pipe sets are required when combining with the carbon fibre diffuser.
Modular Design: Allows for easy integration with optional link pipe sets and full Akrapovič exhaust systems, including the Evolution Race Header Set with or without valves. This modularity provides flexibility in enhancing sound and performance characteristics to suit your preferences.

With its exceptional workmanship and cutting-edge technology, the Akrapovič Slip-On Race Line exhaust system not only amplifies your vehicle's performance but also its presence on the road or track, ensuring it stands out with a powerful racing growl that matches its enhanced capabilities.

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

911 GT3 RS (991.2) - OPF/GPF / 911 Speedster - OPF/GPF:

This Slip-On Race system (S-PO/TI/8) must be upgraded into a full Akrapovič Evolution Race Line exhaust system by combining it with the Evolution Header Set (E-PO/T/6) with side mufflers and valves, which is designed to supplement the performance at higher revs. With complex parts cast in Akrapovič’s own titanium foundry, the expertise used in this system, and the coating finish, the system demonstrates the highest standard of workmanship and technology. Incorporating 100 cpsi sports catalytic convertors in the exhaust manifold and side mufflers, the Evolution Race Line utilizes integrated catalytic convertors and the functionality of the exhaust valves to deliver a complete workout for the senses. The system offers a near-perfect power curve, along with an altered torque distribution, all designed to continually deliver performance as the revs rise. The use of lightweight materials results in big weight savings, and the addition of the Evolution Race Line will have the car performing like a true cup racer, with a powerful racing sound that resonates with every push of the accelerator pedal, producing a deep, pure racing growl to match the performance.

When installing Akrapovič aftermarket optional link pipes with sports catalytic converters or without catalytic converters, which are developed for use on closed tracks only, remapping the ECU is mandatory. When installing Akrapovič aftermarket exhaust system that was developed for use on closed tracks, we recommend remapping the ECU in order to prevent potential »check engine light« warning signals.

Mandatory Parts:

• Evolution Header Set (E-PO/T/6/1)
• Tail pipe set TP-T/S/19. When combining the slip-on system with optional carbon fibre diffuser DI-PO/CA/7/G, you must use tail pipe set TP-T/S/17.
• An additional original Porsche stock bracket (Porsche p/n: 99111147391) is required for mounting the Akrapovič exhaust system. Please read the instructions carefully before the start of the installation.

911 GT3 RS (991.2)

•  The mandatory tail pipe set TP-T/S/19 needs to be ordered separately. When combining the slip-on system with optional carbon fibre diffuser DI-PO/CA/7/G, you must use tail pipe set TP-T/S/17/H or TP-T/S/17.
•  The Slip-On Race system can be optionally combined with Link Pipe Set (Titanium) that retains stock headers and removes stock side mufflers, or it can be upgraded into a full Akrapovič exhaust system, either with combining it with Evolution Race Header Set without valves or Evolution Header Set with side mufflers and valves.

911 GT3 / GT3 Touring (991.2)

•  The mandatory tail pipe set TP-T/S/17 needs to be ordered separately.
•  The Slip-On Race system can be optionally combined with Link Pipe Set (Titanium) that retains stock headers and removes stock side mufflers, or it can be upgraded into a full Akrapovič exhaust system, either with combining it with Evolution Race Header Set without valves or Evolution Header Set with side mufflers and valves.

911 GT3 (991.1)
•  The mandatory tail pipe set TP-T/S/19 needs to be ordered separately.
•  The Slip-On Race system can be optionally combined with Link Pipe Set (Titanium) that retains stock headers and removes stock side mufflers, or it can be upgraded into a full Akrapovič exhaust system, either with combining it with Evolution Race Header Set without valves or Evolution Header Set with side mufflers and valves.

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.

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S-PO

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A Voucher for £100 available when you buy this product. For more information CLICK HERE

DesignTek Titanium sports exhaust system.



Fits:
Porsche 991.1 Turbo
Porsche 991.2 Turbo

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3601173170

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Exhaust final muffler with black chrome tailpipes



High quality SUS304 stainless steel exhaust rear section compatible with OE rear mufflers. Complimented by black chrome tail pipe in ⌀89mm

Designed for maximum flow and no restriction.

Reduced back pressure and better scavenging. More torque and horsepower across the RPM band.

Fits:
Porsche 991 GT3 3.8L 476 Bhp 2013 - 2017 (A175 engine)
Porsche 991 GT3 RS 4.0L 507 Bhp 2013 - 2017 (A175 engine)
Porsche 911 R 4.0L 507Bhp 2014-2017 (A176 engine)

Please note: This will not fit cars:
- with engine codes DNSA / DNSB - 4.0L with 520 Bhp
- released after 06/2017 with engine codes DGG / DGGA / DGGB

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3606609136

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Exhaust muffler bypass X-Pipe.



Fits:
Porsche 991 C2S / C4S

Click 'Zoom in' for large parts diagram.
3606009104 replaces No 17.

Please note: sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1^st 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.


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3606009104

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Fabspeed Rennsport Muffler. 

The ULTIMATE OEM style high performance replacement muffler for your GT3

FEATURES:
•   Fits all Porsche 991 GT3 / GT3 RS vehicles 2014-2016 worldwide
•   Constructed from CNC cut T304L stainless steel
•   Designed from 3D scans of the OEM muffler so we can achieve perfect bolt-on fitment
•   Will not break or crack like OEM GT3 mufflers do
•   Incorporates our signature cast X-pipe for superior flow and exhaust scavenging
•   Paired with our Side Muffler Bypass Pipes this muffler adds +27 ft/lbs of TQ and +16 WHP or +18 HP at the crank!
•   4 different tip options available
•   Completely retains PSE valved exhaust functionality
•   No Check Engine Light guaranteed
•   This cat-back system is emissions legal in all 50 states and the rest of the world
•   Built in house at Fabspeed Motorsport USA in Fort Washington, PA
•   Simple bolt-on installation, no cutting or welding required
•   All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

As many GT3 owners know, the OEM mufflers are prone to cracking, breaking and blowing out, particularly the titanium mufflers on GT3RS cars. We wanted to design a muffler replacement that not only fixed that issue but also improved on the OEM design. Using our 25+ years of air and water-cooled experience, we took the valve open tubing to 2.75in / 70mm which is the optimal diameter for GT3 engines to have low restriction but maintain high velocity and high GT3 pitch for the signature GT3 CUP car sound. Then, we implemented our signature investment cast X-Pipe for optimal exhaust scavenging. The X merges the two cylinder banks without creating any restriction in exhaust flow. To maintain the factory muffler’s exhaust note and lack of drone, we mimicked Porsche’s 7 chamber design. This makes for a completely drone free muffler, even when running catless race headers! Pair this with Fabspeed Side Muffler Muffler Bypass Pipes for the ultimate emissions compliant GT3 exhaust. This muffler is guaranteed to NEVER BREAK or fail.

SOUND:
This muffler will have a very similar tone to the OEM muffler, however, it will be a bit louder with PSE turned on. It will also sound a bit smoother and higher pitched thanks to our signature X-pipe.

POWER:
On our 991.1 GT3RS test car, paired with Fabspeed Side Muffler Muffler Bypass Pipes, the Rennsport Muffler picked up an impressive 27 ft/lbs of TQ down low at 3,200 RPM. From 2,900 RPM all the way to 5,700 RPM it picks up 10 WHP or more, and peak WHP is up from 446 to 454! That’s a gain of 8 WHP or 9 HP at the crank.

NOTE:
•   Requires OEM gaskets and hardware to be reused
•   If they are not available here are the necessary part numbers. 
•     2x Muffler band straps (99711111970)
•     2x Bolt for muffler band strap (90006736201)
•     2x Each Side Muffler to Center Muffler Gaskets (99711156390, 99711156190)  

Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.

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FSPOR991GT3RSM

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Sport Exhaust Cat-Back.

Fits:
Porsche 911 (991.1) GT3 & GT3 RS 2013>>2017
Porsche 911 (991.2) GT3 & GT3 RS 2018>>2020

Parts Assembly:
MSPO245: Rear Silencer Delete Assembly

NOTES: Re-Uses OE Porsche Trims

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SSXPO129

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Milltek Sport Exhaust Cat-Back With Polished GT-100 Trims.

Fits:
Porsche 991.1 GT3 / GT3 RS 2013>>2017

Parts Assembly:
MSPO245: Rear Silencer Delete Assembly
MSPO246: Trim Mounting Plate
MSTIP199: x2 4.0" Polished Tips

Tailpipe: 100mm GT100

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SSXPO126

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Milltek Sport Exhaust Cat-Back With Cerakote Black GT-100 Trims.

Fits:
Porsche 911 (991.1) GT3 & GT3 RS 2013>>2017

Parts Assembly:
MSPO245: Rear Silencer Delete Assembly
MSPO246: Trim Mounting Plate
MSTIP200: x2 4.0" Cerakote Black Tips

Tailpipe: 100mm GT100B

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SSXPO127

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Milltek Sport Exhaust Cat-Back With Titainium GT-100 Trims.

Fits:
Porsche 911 (991.1) GT3 & GT3 RS 2013>>2017

Parts Assembly:
MSPO245: Rear Silencer Delete Assembly
MSPO246: Trim Mounting Plate
MSTIP201: x2 4.0" Brushed Titanium Tips

Tailpipe: 100mm GT100

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SSXPO128

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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.

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9M9111173171

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DesignTek Secondary Exhaust Muffler Bypass for Porsche 991 S 3.8L



Fits:
Porsche 991 Carrera S 3.8L

These simple U/J pipes remove the mufflers that are tucked up in the rear quarter panels. Why the reason for these I do not know. Typically in the past we either see a main centre muffler or 2 mufflers with catalyst pipes. So this was the first simplest part to change out. Keeping the same diameter for a perfect OEM replacement, these pipes are straight through which not only eliminates any muffler packing or baffling, but also the weight. Each stock muffler weighs approximately 15.6lbs. The Designtek Secondary Exhaust Muffler Bypass Pipes are about 3lbs each. Now eliminating restriction, we have also saved about 25lbs off the rear end. Because this part still retained the factory headers with cats and the factory center muffler, it added a slightly deeper tone to the exhaust but not a drastic droning change that a full exhaust could. Upon revving the car out stationary and on the dyno, you could hear the tone change nicely as you past the 4000rpm mark.

Garage Notes: The pipes sometimes rub on the heatshields causing a resonation through the car. This can be sorted by redressing the heatshields but isn't a straight forward bolt up and go replacement.

The sound its self is quite impressive and very sporty from the outside but to drive causes a pretty bad droning sound under normal driving conditions. This exhaust peaks at 101decibels

According to the factories dyno test, the secondary muffler bypass pipes really start achieving performance from 3700rpm all the way to redline. With a baseline test in 3rd gear and all wheel drive (have to for the dyno and no warning lights), the car made 344HP and 289ft/lbs of torque. Based on the ambient temperature, the factories Mustang Dyno, and 91octane fuel, this is about right considering the car comes with 400bhp. With the addition of our pipes, the car put down 358HP and 298ft/lbs of torque gaining 14HP and 9ft/lbs at the peak.

Click 'Zoom in' for large parts diagram.
3606009913 replace No11/12.



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3606009913

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Secondary Sports Exhaust Boxes DesignTek for Porsche 991.1

Fits:
Porsche 991 Carrera 3.4L
Porsche 991 Carrera S 3.8L

The secondary sports exhaust boxes are designed to give the car a deeper sound, these car be added to the factory exhaust parts and replace the two side muffler cans.

Powerful, robust and sporty. Better still, it can be further enhanced thanks to the sports exhaust system, featuring a modified secondary sports exhaust boxes, the sound varies with driving behaviour, ranging from a robust output during normal road driving to a distinctively more aggressive tone during performance use.

Click 'Zoom in' for large parts diagram.
3606009913 replace No11/12.



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3606009923

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Sport exhaust silencers Porsche 991.1 Carrera without bypass valves



FITS
Porsche 991.1 Carrera 2012-2015

NOT FOR PORSCE 991.1 CARRERA S

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.

991.1 Carrera is different from Carrera S because it does not have the bypass valves
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.

END TIPS DESIGN - OE
The muffler must be used in conjunction with the original exhaust end tips.

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