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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://d911api.datadial.net/images/schemaLogo.png https://d911api.datadial.net/images/schemaLogo.png +443456003478 https://d911api.datadial.net Facebook Instagram

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S-PO/TI/13
Product Information
Product Information
Slip-On Line (Titanium) Exhaust System

Fits:
Porsche Panamera / 4 / Sport Turismo (971) V6 3.0ltr 2017 - 2020

This stunning system is made completely from high-grade titanium. It includes parts cast in the company's in-house foundry, featuring an additional pair of exhaust valves behind the rear mufflers, designed to provide optimal control of the exhaust sound for the best aural enjoyment. The system has been perfectly tuned to deliver the very best sound experience in all modes – enormous effort was invested to give it a rich higher-frequency V6 sound with a sporty racing note, while keeping it smooth and eliminating any drone for maximum everyday comfort. By using the optional Akrapovič Sound Kit, the driver can choose between a loud racy sound or a quieter note for long-distance driving, regardless of the mode chosen for the vehicle. The look of the Slip-On system can also be further enhanced by adding four round titanium or carbon-fibre tailpipes.

An increase in performance and torque through a broad rpm range and a significant weight savings makes this a very serious performance upgrade. With optimized gas flow and reduced back pressure, it allows limitless tuning options.

It is a simple plug-and-play installation with no need for remapping. The exquisite Akrapovič Slip-On Line (Titanium) exhaust system adds performance and style, along with an amazing soundtrack inside and outside cabin.

Fittment notice: This system does not fit on vehicles equipped with Otto particulate filter (OPF). This product will not fit on Executive models.​

*** Mandatory Extra Part Required
Tail pipe set (Titanium) - Product Code: TP-T/S/18
or
Tail pipe set (Carbon) - Product Code: TP-CT/48


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Related, superseded, cross reference or alternative numbers for comparison.

S-PO
971253608Y
971253607Y

The product you are viewing cross references to these numbers
P-HF1149
Product Information
Product Information
Akrapovič Sound Kit

Fits:
Porsche (971) Panamera / 4 / Sport Turismo 2017 - 2020
Porsche (971) Panamera 4 E-Hybrid / Sport Turismo 2017 - 2020
Porsche (971) Panamera 4S / Sport Turismo 2017 - 2020
Porsche (971) Panamera GTS / Sport Turismo 2019 - 2020
Porsche (971) Panamera Turbo / Sport Turismo 2017 - 2020
Porsche (971) Panamera Turbo S E-Hybrid / Sport Turismo 2017 - 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 (already included in evolution system) 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.

With the use of optional Akrapovič Sound Kit, the ECE homologation is not valid anymore.

Pictures are symbolic.

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

P-HF1149
P-HF1149

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
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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