Switchable Silencers / Mufflers

cars with first edition brackets
Porsche 718 Cayman GT4 / Boxster Spyder - OPF/GPF >>02/2020
Porsche 718 Cayman GTS 4.0 / Boxster GTS 4.0 2020
Porsche 718 Cayman GTS 4.0 / Boxster GTS 4.0 - OPF/GPF 2020

Sound, design, and performance have combined to create this stunning exhaust. The Akrapovič sound engineers have produced a rich, harmonic, high-frequency tone from the system in the upper rev range, which perfectly combines with the deep sound in the lower range to provide an aural experience in the cabin with no drone and a sound that lingers long after the throttle is released.
Constructed from lightweight high-grade titanium, with parts made in the in-house foundry to create a perfect fit within the limited space available, the three mufflers – two side and one central – are configured in a unique way, perfectly engineered by the Akrapovič technicians. There is a choice between two different sets of round titanium tailpipes, sandblasted and coated, and available in a natural titanium finish or black. The inner side of the tailpipes features a dynamic relief surface for increased aesthetic value. An engraved logotype adds to the visual presence.
Power gains of +4.8 kW at 3,000 rpm and a torque increase of +15.8 Nm at 2,900 rpm were recorded on the Akrapovič dyno, using a Porsche 718 Cayman GT4 with a stock exhaust system for comparison. This gives the system – which is designed for racing track use only, and is not intended for street use – performance to match its looks and innovative design.
Optional extras are available: there is a Link pipe set in titanium for the Slip-On Line Race (Titanium) upgrade, and a carbon-fibre diffuser, in matte or high gloss, can be added to emphasise the design of the Akrapovič exhaust tailpipes. For more control over the exhaust system's sound, the optional Akrapovič Sound Kit is available to control the exhaust valves at any time and allow the driver to choose the setting preferred.
Fitment notice: A modification of fitting brackets done by Porsche on 718 GT4/Spyder and 718 Cayman GTS/Boxster GTS 4.0 produced approximately after February 2020 was identified. Please turn to your Area sales manager for detailed explanation on differences in order to choose the appropriate exhaust for your car.
*** Mandatory Extra Part Required
Tail pipe set (Titanium) Black - Product Code: TP-T/S/28
or
Tail pipe set (Titanium) - Product Code: TP-T/S/27
THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
S-PO
The product you are viewing cross references to these numbers
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Fits:
Porsche 718 Cayman GTS 4.0 / Boxster GTS 4.0 2020>>
Porsche 718 Cayman GTS 4.0 / Boxster GTS 4.0 - OPF/GPF 2020>>
Porsche 718 Cayman GT4 / Boxster Spyder 2020>>
Porsche 718 Cayman GT4 / Boxster Spyder OFP/GPF 2020>
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-HF1293
The product you are viewing cross references to these numbers
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L


Weight: 6.7kg
Fits:
Porsche 718 GT4 RS 4.0L
- The Exhaust Sport Valvetronic Silencer is a performance upgrade designed specifically for Porsche 718 GT4 RS
- This silencer replaces the stock exhaust system with a valvetronic setup, offering the ability to control the sound levels of the exhaust.
- The valvetronic 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.
- Default position of the valve is OPEN. The car will start loud if there is no vacuum in the system and will need few seconds to build up the vacuum to close the valves.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606001840
The product you are viewing cross references to these numbers
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

Transform your Porsche GT4 RS or Spyder RS with Fabspeed’s Valved X-Pipe Exhaust System—a perfect blend of power, sound, and precision engineering.
Fits:
Porsche 718 (982) Cayman GT4 RS 2022>>
Porsche 718 (982) Boxster Spyder RS 2023>>
Sound & Performance:
- Our X-Pipe design merges the engine's two exhaust banks for an intoxicating 9,000 RPM symphony, offering a significant increase in volume over the stock system.
- Retains the factory PSE (Porsche Sport Exhaust) functionality, allowing you to quiet the exhaust note at will—ideal for those seeking both performance and comfort.
- Adds +7.5HP (+6.2HP at the rear wheels) at 8,100 RPM and +11 ft/lbs of torque at 3,500 RPM.
- Saves 10 lbs (5kg) compared to the factory system for a lighter, faster ride.
- Helmholtz Technology eliminates drone for a pure driving experience with no unwanted noise frequencies.
- Investment cast X-Pipe for superior exhaust scavenging, defeating resonance and maximizing power output.
Perfect Fit & Design:
- Constructed from aerospace-grade titanium for lightweight durability, with mandrel-bent tubing for optimal flow.
- Laser scanned and CAD designed for a perfect OEM fit.
- 100% bolt-on, simple DIY installation with included hardware and online video guide.
- Helical Limited exhaust valves—imported from the UK and used by the world's top brands like Ferrari, McLaren, and Porsche—ensure maximum reliability.
Emissions Legal:
- This cat-back system is emissions legal in all 50 states and the rest of the world (ROW).
- No check engine light guaranteed!
Why Choose Fabspeed?
At Fabspeed, we engineer every system in-house—no outsourcing like other brands. Our development process includes extensive 3D scanning, dyno testing, and multiple revisions to ensure the best possible product. With over 30 years of experience, we pride ourselves on producing the highest-quality, performance-boosting exhaust systems for Porsche vehicles.
Fabspeed guarantees that our GT4 RS Valved X-Pipe Exhaust System will provide the best sound, the most reliable performance, and the greatest power increase on the market. We use only the finest components, backed by our lifetime warranty for peace of mind.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FSPOR718GT4RSVLV
The product you are viewing cross references to these numbers
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L


The Milltek GPF-Back Exhaust System redefines your driving experience. By replacing your factory exhaust with Milltek's wider, precision-engineered pipework, you'll experience a sharper throttle response, improved engine efficiency, and a striking aesthetic that complements your vehicle’s high-performance nature.
Fits:
Porsche 718 Cayman GT4 - Only for OPF/GPF equipped vehicles with Porsche's PDK transmission*
Porsche 718 Boxster Spyder - Only for OPF/GPF equipped vehicles with Porsche's PDK transmission*
Porsche 718 Cayman GTS 4.0L - Only for OPF/GPF equipped vehicles with Porsche's PDK transmission*
Porsche 718 Boxster GTS 4.0L - Only for OPF/GPF equipped vehicles with Porsche's PDK transmission*
NOTE: This system is compatible exclusively with 718 models that feature a petrol particulate filter (PPF) and Porsche's PDK transmission. PPFs were installed on 718 models manufactured after February 2020. If you are uncertain whether your vehicle is equipped with a PPF, please feel free to contact us with your VIN number for confirmation.
Why purchase a Milltek sport exhaust?
Sharper Throttle Response...
Enjoy quicker engine response with optimized airflow and enhanced performance, improving the overall driving experience.
Substantial Weight Savings...
Lighter than the original exhaust system, reducing overall weight for improved agility and handling.
Premium T304L Aircraft-Grade Stainless Steel...
Built from anti-magnetic, high-quality stainless steel that resists discoloration, offering excellent durability and performance.
Mandrel Bending for Better Gas Flow...
The system uses mandrel bending for full-flow bends, allowing exhaust gases to flow freely and boosting engine efficiency without sacrificing mid-range torque.
Lifetime Guarantee...
Milltek systems come with a lifetime guarantee for the original purchaser, offering peace of mind. (Excludes cats and flexes)
Designed and Manufactured in the UK...
Since 1983, Milltek has been designing and building exhaust systems with over 40 years of technical expertise, ensuring the highest quality and precision.
Ever-Expanding Range of Performance Exhausts...
Milltek offers a continuously expanding selection of exhaust systems tailored for performance vehicles like your Porsche.
--Pipe diameter equals 60.3mm / 2.37 inches.
--Please note that this product does not have official certification for use in Europe.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SSXPO193
The product you are viewing cross references to these numbers
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L


Until February 2020
This exhaust system can be fitted on every 4.0ltr model produced until February 2020. In March a new fixing system based on silent block has been introduced
SOUND: STRAIGHT PIPE
The straight pipe version guarantees a direct path from the engine, removing all factors which may affect the acoustic tuning.
EXHAUST VALVE: PNEUMATIC
The exhaust system is complete with pneumatic valve to replace the standard pneumatic valve installed on the car. Control of the original valve is still provided.
END TIPS DESIGN: OE
The muffler must be used in conjunction with the original exhaust end tips.
RACETRACK USE ONLY
STRAIGHT PIPE AISI 304 STAINLESS STEEL
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp)
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L


From March 2020
This exhaust system can be fitted on every 4.0ltr model produced from March 2020. In March a new fixing system based on silent block has been introduced
SOUND STRAIGHT PIPE
The straight pipe version guarantees a direct path from the engine, removing all factors which may affect the acoustic tuning.
EXHAUST VALVE PNEUMATIC
The exhaust system is complete with pneumatic valve to replace the standard pneumatic valve installed on the car. Control of the original valve is still provided.
END TIPS DESIGN OE
The muffler must be used in conjunction with the original exhaust end tips.
RACETRACK USE ONLY
STRAIGHT PIPE AISI 304 STAINLESS STEEL
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp)
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

Sports exhaust valved bypass Z pipe silencer in titanium
Fits:Porsche 718 Cayman GT4 RS
Porsche 718 Boxster Spyder RS
9m GT4RS / Spyder RS titanium Z pipe silencer.
Reducing turbulence with the exhaust and blending the combustion pulses from both sides of the engine. The result is a more aggressive sound and a true RS experience.
- Constructed from Aerospace grade TC4 titanium precision welded with a lifetime guarantee
- Weighing in at 6kg in total with a weight saving of 9kg over the stock silencer(15kg)
- Fits all Porsche 718 4.0ltr GT4RS /Spyder RS models
- Direct bolt on installation
- Fits original exhaust tips
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9M9GT25105B
The product you are viewing cross references to these numbers
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

Fits:
Porsche 718 Boxster Spyder - 2020 to 2024
Porsche 718 Boxster GTS 4.0ltr - 2020 to 2024
Porsche 718 Cayman GT4 - 2020 to 2024
Porsche 718 Cayman GTS 4.0ltr - 2020 to 2024
Constructed from Aerospace grade TC4 titanium precision welded with a lifetime guarantee
Weighing in at 7kg in total with a weight saving of 8kg over the stock silencer(15kg)
Fits all Porsche 718 4.0 GT4 /Spyder/GTS vehicles (2020-)
Direct bolt on installation with zero exhaust drone
Fits original exhaust tips or optional 9m GT4RS titanium style X pipe tips
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9M718TISILENCER4.0
The product you are viewing cross references to these numbers
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp)
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
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.