Please wait… 
Please wait while we process your order,
do not press the back button… 
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

Exhaust Pre-Silencer

DISPLAYING 1 to 2 (of 2 products)
Black Friday Sale
9M718OPFPIPES
Product Information
Product Information
9m over axle GPD delete exhaust pipe set. 

Fits:
Porsche 718 Boxster Spyder 4.0ltr 
Porsche 718 Boxster GTS 4.0ltr
Porsche 718 Cayman GTS 4.0ltr
Porsche 718 Cayman GT4 4.0ltr

9m 718 GT4/GTS/Spyder over axle pipes

  • 9m 718 GT4/GTS/Spyder over axle pipes stainless steel heat shielded
  • Deletes restrictive GPF pipes
  • Much better exhaust sound
  • Faster acceleration
  • 50% weight saving
  • Reduced radiant heat on the inside of the rear tyres
  • Minimum gains of 20hp+

Please Note
European cars will require our 9m ECU remap to avoid engine warning light 

Click 'Zoom in' for large parts diagram.
Diagram ref no 8 and 9



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Related, superseded, cross reference or alternative numbers for comparison.

9M718OPFPIPES
982254351B
982254351L
982254351AA
982254351P
982254351R
982254350B
982254350L
982254350AA
982254350P
982254350R

The product you are viewing cross references to these numbers
9M82254351BRESKIT
Product Information
Product Information
Resonated GPF delete exhaust pipe set. Porsche 718 Boxster Spyder / Cayman GT4 / GTS 4.0ltr 
Sold as a pair - left and right

Fits:
Porsche 718 Boxster Spyder 
Porsche 718 Boxster GTS 4.0ltr
Porsche 718 Cayman GT4
Porsche 718 Cayman GTS 4.0ltr


9m 718 GT4/Spyder/GTS 4.0 Resonated OPF delete pipes
9m Resonated OPF delete pipes reduce rasp and drone noise when paired with other exhaust upgrades

  • Deletes restrictive GPF pipes
  • Much better exhaust sound
  • Faster acceleration 
  • 50% weight saving
  • Reduced radiant heat on the inside of the rear tyres
  • Minimum gains of 30hp+
  • Made in the UK

Please Note
European cars will require our 9m ECU remap to avoid engine warning light

Click 'Zoom in' for large parts diagram.
Diagram ref no 8 and 9




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Related, superseded, cross reference or alternative numbers for comparison.

9M82254351BRESKIT
982254351B
982254351L
982254351AA
982254351N
982254351T
982254350B
982254350L
982254350N
982254350AB
982254350T

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

Porsche Exhaust Pre-Silencer

At Design911, we supply a wide range of exhaust pre-silencers for Porsche models, helping you restore the correct exhaust tone, manage noise levels and keep the system working efficiently.

Why do Porsche Exhaust Pre-Silencer parts matter?

Exhaust pre-silencers play a key role in shaping the sound and backpressure characteristics of your Porsche’s exhaust system. Over time, exposure to heat, moisture and road debris can cause internal deterioration, leaks or corrosion, which affect both refinement and performance. Replacing tired components helps your Porsche feel better cared for and can prevent small exhaust issues turning into larger, more expensive repairs later on.

  • Keep your Porsche looking and sounding smart rather than tired or neglected
  • Help protect the rest of the exhaust system from accelerated wear and corrosion
  • Reduce minor niggles such as droning, harshness or inconsistent exhaust tone
  • Support long-term enjoyment, pride of ownership and potential resale value

Common options & kits

Individual replacement parts 

Specific pre-silencers or associated fittings to address a particular leak, corrosion spot or sound issue without renewing the whole system.

  • Ideal for targeted repairs or MOT-related fixes
  • Lets you replace only what is damaged or worn
  • Helps keep initial spend under control while restoring function

Matched sets or pairs 

Components supplied together so both sides or related exhaust sections are renewed at the same time.

  • Consistent exhaust tone and backpressure across both banks
  • Helps avoid uneven ageing or mismatched sound from one side
  • A sensible choice when refreshing an older exhaust system

Complete kits 

Grouped parts designed to refresh a whole exhaust section in one go, useful for upgrades and restorations.

  • Everything specified for a particular Porsche model in a single package
  • Saves time compared with sourcing individual components
  • Ideal when upgrading or restoring your Porsche exhaust system

Brands & quality options

At Design911, we stock genuine Porsche parts where available, plus OEM-equivalent and carefully selected aftermarket brands. This lets you choose between keeping things original, adding subtle upgrades or managing budgets on everyday maintenance.

Cargraphic 

The name Cargraphic is associated with high-quality exhaust and vehicle accessories for Porsche models, designed and developed in-house with a strong focus on fit, function and durability. Many products are tested and approved to recognised standards, making them a popular choice for performance-oriented Porsche owners.

Dansk 

Dansk, part of the JP Group, is a long-established manufacturer of replacement exhaust components and other parts with a global reputation in the classic and modern Porsche market. Their range focuses on dependable fitment and practical solutions for everyday repairs and restorations.

Dansk Motorsport 

Dansk Motorsport is the performance and sport line of Dansk Original, offering sport exhaust options for many air-cooled Porsche 911 models, including the 964. Systems are designed to enhance both sound and flow, with versions ranging from subtle sport upgrades to more aggressive valve-controlled setups.

DesignTek 

DesignTek offers a variety of Porsche-focused exhaust components and packages. When choosing DesignTek parts, it is important to match the correct references and specifications to your Porsche model and intended use.

Kits 

Design911 package kits group compatible Porsche exhaust components into convenient bundles. They are curated to simplify selection and help ensure that the parts work together correctly on your specific model.

When should you review or replace your Porsche exhaust pre-silencer?

Checking pre-silencers regularly helps you spot wear, damage or age-related deterioration before it affects refinement, performance or leads to more expensive repairs later on.

  • Existing pre-silencer is worn, rusted through, cracked or leaking at the seams
  • You notice a change in exhaust note, extra harshness, drone or cabin resonance
  • The exhaust system shows visible corrosion, and you want to prevent further damage
  • You are planning other exhaust or engine upgrades and want supporting components in top condition
  • You want the car to feel smarter and better cared for in daily use or before resale

If any of these apply, it is a good time to review your exhaust pre-silencer and replace anything that is past its best, so your Porsche stays dependable and enjoyable to drive.

Explore Porsche exhaust pre-silencer parts with Design911

Browse exhaust pre-silencer options for Porsche models at Design911 — from individual sections to complete kits — and find solutions to suit everyday maintenance, performance upgrades and full restorations.

You may also like
Popular Models