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- Accessories
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Switchable Silencers / Mufflers
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*
Parts Assembly:
Pipe Diameter: 2.37" (60.30mm)
Tailpipe: 115mm GT115
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Related, superseded, cross reference or alternative numbers for comparison.
SSXPO191
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
Shop Securely
12 Month Warranty
Worldwide Delivery
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*
Parts Assembly:
Pipe Diameter: 2.37" (60.30mm)
Tailpipe: 115mm GT115
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.
SSXPO192
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
Shop Securely
12 Month Warranty
Worldwide Delivery
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*
Parts Assembly:
Pipe Diameter: 2.37" (60.30mm)
Tailpipe: 115mm JET-115
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
Shop Securely
12 Month Warranty
Worldwide Delivery
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*
Parts Assembly:
Pipe Diameter: 2.37" (60.30mm)
Tailpipe: 115mm GT115
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.
SSXPO190
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
Shop Securely
12 Month Warranty
Worldwide Delivery
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*
Parts Assembly:
Pipe Diameter: 2.37" (60.30mm)
Tailpipe: 115mm GT115
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.
SSXPO189
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
Shop Securely
12 Month Warranty
Worldwide Delivery
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
Shop Securely
12 Month Warranty
Worldwide Delivery
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
Shop Securely
12 Month Warranty
Worldwide Delivery
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
Shop Securely
12 Month Warranty
Worldwide Delivery
Porsche Switchable Silencers & Mufflers - Dual-Mode Performance Exhaust Systems
Switchable Silencers / Mufflers offer Porsche owners the best of both worlds—refined, road-friendly exhaust sound when cruising, and an aggressive, performance-focused tone at the touch of a button. Using valve-controlled technology, these exhaust systems allow drivers to switch between quiet and sport modes, delivering enhanced sound, performance, and driving engagement on demand.
Available from Design911, Porsche switchable silencers include both genuine Porsche-engineered systems and high-quality aftermarket performance options, all designed to integrate seamlessly with your vehicle’s existing exhaust components and control systems.
What Do Switchable Silencers / Mufflers Do?
Switchable silencers use internal exhaust valves to control sound level and exhaust flow.
Core Functions:
- Allow selectable quiet and sport exhaust modes.
- Improve exhaust gas flow under performance driving.
- Enhance throttle response and engine efficiency.
- Maintain refined sound levels for everyday driving.
- Deliver a more engaging driving experience on demand.
These systems adapt your Porsche’s character to suit any driving situation.
Why Do Standard Exhaust Silencers Fail or Fall Short?
Factory exhaust systems are designed to meet noise
regulations and long-term durability requirements, which can limit performance
and sound. Common issues include:
- Internal corrosion from heat and condensation.
- Restrictive baffling reducing exhaust flow.
- Fixed sound levels with no adaptability.
- Valve or actuator wear in older switchable systems.
- Limited performance compatibility with tuned engines.
Over time, standard silencers may lose efficiency, sound quality, or reliability.
Why Upgrade to Switchable Silencers / Mufflers?
Upgrading to a switchable exhaust system enhances both performance and versatility.
Upgrade Benefits:
- Dual-mode exhaust sound at the press of a button.
- Improved exhaust flow for better performance.
- Sportier, more engaging exhaust note when desired.
- Maintains comfort and compliance in quiet mode.
- Ideal for road, touring, and spirited driving.
Whether OEM or aftermarket, switchable silencers offer flexibility without compromise.
Highlights
- Porsche switchable silencer and muffler upgrades
- Valve-controlled exhaust sound adjustment
- OEM Porsche and premium aftermarket options
- Improved performance, sound, and driving engagement
- Compatible with factory systems and controls
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed