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Switchable Silencers / Mufflers

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DISPLAYING 17 to 20 (of 20 products)
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9M9GT25105B
Product Information
Product Information

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Related, superseded, cross reference or alternative numbers for comparison.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
9GT251053A
9GT251053B

The product you are viewing cross references to these numbers
9M718TISILENCER4.0
Product Information
Product Information
Sports exhaust valved rear silencer, titanium. 

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Related, superseded, cross reference or alternative numbers for comparison.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
982251053D
982251053G
982251053F
982251053H
982251053K

The product you are viewing cross references to these numbers
9996001111
Product Information
Product Information
Switch set for sound valves.

designtek

Fits:
All Porsche models with vacuum operated valvetronic exhaust systems

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Related, superseded, cross reference or alternative numbers for comparison.

9996001111
98622094335SSOUND

The product you are viewing cross references to these numbers
FSPOR718VES
Product Information
Product Information
Fabspeed Valvetronic exhaust system. 

FEATURES:
• Fits all Porsche 718 Boxster/Cayman Base/S Models 2017+ and GTS Models 2017-2020 Worldwide
•   Significant Increase in throttle response and reduced turbo lag
•   Weight savings of 7 lbs / 3.2 KG’s
•   CAD designed X-Pipe made using investment casting for maximum possible flow and spectacular sports car sound
•   Helical Limited U.K. silica carbide exhaust valves
•   Plug and play exhaust valves work with the factory PSE system (Porsche Sport Exhaust)Optional valve controller kit for non-PSE equipped cars
•   Constructed from CNC mandrel-bent T304L stainless steel50 state emissions legal Cat-Back exhaust does not remove the catalytic converters
•   All parts are easily installed with no cutting or welding required, bolt-on, and go
•   Optimized for maximum performance with no check engine light Choose between real Carbon Fiber, Satin Black, Polished Stainless, Brushed Stainless, or Re-use your OEM tips
•   All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

Fabspeed's 718 Valvetronic Exhaust system for the Porsche Boxster/Cayman gives you full control of how rowdy your exhaust note is. Made with tier one quality Helical exhaust valves and mandrel bent T304 stainless steel, this is an extremely high quality exhaust system worthy of your P-car

SOUND:

With PSE on (valves open) you’ll be treated to a unique and rowdy Porsche flat-four rumble. In sport mode, pops on downshifts will be aggressive and sharp. With PSE off (valves closed), this system is still louder than a stock car but very tame around town without any unwanted drone.

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.



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

FSPOR718VES
FS.POR.718.VES
982251052F
982251052E
982251052G
982251052J
982251051D
982251051K
982251051F
982251051G
982251051J

The product you are viewing cross references to these numbers
DISPLAYING 17 to 20 (of 20 products)
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About Switchable Silencers / Mufflers

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       

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