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Porsche > 991 (911) MK1 2012-2016 > Exhausts >

Akrapovic Exhaust

Akrapovic Exhaust

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DISPLAYING 1 to 2 (of 2 products)
Akrapovic dB Reducer (Titanium). Porsche 911 (991.1 / 991.2 / 992.1) GT3 / GT3 Touring / GT3 RS / S/T - TP-PO991GT3-BOX - TP-PO991GT3-BOX
3
Akrapovic dB Reducer (Titanium). Porsche 911 (991.1 / 991.2 / 992.1) GT3 / GT3 Touring / GT3 RS / S/T
TP-PO991GT3/BOX
Product Information
Product Information
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.



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Related, superseded, cross reference or alternative numbers for comparison.

TP-PO991GT3
TP-PO991GT3-BOX

The product you are viewing cross references to these numbers
Akrapovic sound kit. Porsche 911 (991.1) Carrera /S/4/4S/GTS 2012-15 - P-HF874, PHF874
2
Akrapovic sound kit. Porsche 911 (991.1) Carrera /S/4/4S/GTS 2012-15
P-HF874
Product Information
Product Information
Akrapovič sound kit.

Fits:
Porsche 911 (991.1) Carrera /S/4/4S/GTS 2012 - 2015
Porsche 911 (991.1) Carrera Cabriolet /S/4/4S/GTS 2012 - 2015

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-HF874
P-HF874
PHF874

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

Akrapovič Exhaust Systems | Lightweight Motorsport Performance | Design911

Akrapovič Exhaust Systems represent the pinnacle of performance exhaust engineering, combining motorsport-proven technology with lightweight construction and precision tuning. Designed to significantly reduce weight while optimising exhaust flow, Akrapovič systems enhance power delivery, throttle response, and exhaust acoustics for both road and track-driven Porsche vehicles.

Available from Design911, Porsche Akrapovič exhausts are developed using decades of racing experience and validated through championship-winning motorsport programmes. Each system is engineered to deliver maximum performance, durability, and an unmistakable Akrapovič exhaust sound.

What Do Akrapovič Exhaust Systems Do?

Akrapovič exhausts optimise exhaust gas flow while reducing system weight.

Core Functions:

  • Reduce exhaust backpressure for improved engine breathing.
  • Lower overall vehicle weight for better performance.
  • Enhance throttle response and power delivery.
  • Produce a distinctive, motorsport-inspired exhaust note.
  • Improve thermal efficiency and exhaust durability.

A high-performance exhaust system plays a critical role in engine efficiency and driving dynamics.

Why Do Standard Exhaust Systems Fail or Limit Performance?

Factory exhaust systems are designed primarily for cost, emissions, and noise compliance. Over time and under performance demands, they can suffer from:

  • Excessive weight reducing performance efficiency.
  • Restrictive pipework limiting exhaust flow.
  • Corrosion from heat and condensation.
  • Dull exhaust sound lacking character.
  • Reduced compatibility with performance tuning upgrades.

These limitations restrict both performance potential and driving enjoyment.

Why Upgrade to an Akrapovič Exhaust?

Akrapovič exhaust systems are engineered using elite motorsport principles.

Upgrade Benefits:

  • Ultra-lightweight titanium or high-grade materials.
  • Motorsport-developed exhaust flow optimisation.
  • Proven performance gains and improved throttle response.
  • Long service life under extreme conditions.
  • Iconic Akrapovič sound signature.

Upgrading to Akrapovič delivers uncompromising performance, sound, and engineering excellence.

Highlights

  • Porsche Akrapovič performance exhaust systems
  • Lightweight motorsport-grade construction
  • Improved power, response, and efficiency
  • Championship-proven engineering pedigree
  • Distinctive Akrapovič exhaust sound       

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