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Porsche > 911 & 912 (1965-1989) > 911 1978-1983 3.0L / SC > Exhausts >

Exhaust Pre-Silencer

Exhaust Pre-Silencer

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DISPLAYING 1 to 8 (of 8 products)
Blanking plug for oxygen sensor hole - 333660211
4
Blanking plug for oxygen sensor hole
333660211
Product Information
Product Information
Blanking plug for oxygen sensor hole

M 18 x 1,5 x 18
23mm in length

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Related, superseded, cross reference or alternative numbers for comparison.

333660211
333660211

The product you are viewing cross references to these numbers
Exhaust Pre-Silencer Sports DesignTek. Porsche 911 1975-89 - 93011118301, 93011118303
3
Exhaust Pre-Silencer Sports DesignTek. Porsche 911 1975-89
3606501101
Product Information
Product Information
Exhaust Pre-Silencer Sports DesignTek.

Fits:
Porsche 911 2.7L / 3.0SC / 3.2 Carrera 1974-1989*

*If your car is 74-85 - without oxygen sensor, please order one of blanking plug (not included with pre silencer) part number 333660211

Easy bolt-on up to 11BHP. T304 Stainless steel with polished showcar mirror shine. Fits cars with or without oxygen sensors. Just like Porsche factory German catbypass Euro-premuffler.

*Recommend as our best performing Exhaust Pre-silencer

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Related, superseded, cross reference or alternative numbers for comparison.

3606501101
93011118301
93011118303

The product you are viewing cross references to these numbers
Exhaust Pre-Silencer Sports DesignTek. Porsche 911 1975-89 - 93011118301, 93011118303
3
Exhaust Pre-Silencer Sports DesignTek. Porsche 911 1975-89
3606501101/1
Product Information
Product Information
DesignTek Exhaust Pre-Silencer Sports 

Made in the UK gb

Fits:
Porsche 911 2.7L / 3.0SC / 3.2 Carrera 1974-1989*

*If your car is 74-85 - without oxygen sensor, please order one of blanking plug (not included with pre silencer) part number 333660211

Easy bolt-on. T304 Stainless steel with polished showcar mirror shine. Fits cars with or without oxygen sensors. Just like Porsche factory German catbypass Euro-premuffler.



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Related, superseded, cross reference or alternative numbers for comparison.

3606501101
93011118301
93011118303

The product you are viewing cross references to these numbers
Exhaust pre-silencer Sports. Made of polished stainless steel. Porsche 911 1975-89 - 93011118300, 92.300, 1620200500, 92.300S, 1620200600, 93011118301 - 92.300S, 1620200600
1
Exhaust pre-silencer Sports. Made of polished stainless steel. Porsche 911 1975-89
91122092300S
Product Information
Product Information
Sports pre-silencer bypass without baffling with lambda sensor hole.
Made of polished stainless steel.

danskmotorsport

Fits:
Porsche 911 08/1975-07/1989

*If your car is 75-85 - without oxygen sensor, please order one of blanking plug (not included with pre silencer) part number 333660211


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

91122092300S
93011118300
92.300
1620200500
92.300S
1620200600
93011118301

The product you are viewing cross references to these numbers
Exhaust pre-silencer Sports. Made of steel with grey paint. Porsche 911 1975-89 - 93011118300, 92.300, 1620200500, 92.300S, 1620200600, 93011118301 - 92.300, 1620200500
2
Exhaust pre-silencer Sports. Made of steel with grey paint. Porsche 911 1975-89
91122092300
Product Information
Product Information
Sports pre-silencer bypass without baffling with lambda sensor hole.
Made of steel with grey paint.

danskmotorsport

Fits:
Porsche 911 1975-89

*If your car is 74-85 - without oxygen sensor, please order one of blanking plug (not included with pre silencer) part number 333660211


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

91122092300
93011118300
92.300
1620200500
92.300S
1620200600
93011118301

The product you are viewing cross references to these numbers
Exhaust Pre-Silencer STD DesignTek for Porsche 911 1975-89 - 93011118301, 93011118303, 1620500300, 1620500200
3
Exhaust Pre-Silencer STD DesignTek for Porsche 911 1975-89
3606501102
Product Information
Product Information
Exhaust Pre-Silencer Standard replacement DesignTek

designtek

Fits:
Porsche 911 2.7L / 3.0SC / 3.2 Carrera 1974-1989

*If your car is 74-85 - without oxygen sensor, please order one of blanking plug (not included with pre silencer) part number 333660211

Replacement Pre-silencer made in T304 Stainless steel with polished showcar mirror shine. Fits cars with or without oxygen sensors. Just like Porsche factory German catbypass Euro-premuffler.

*Recommend as our best replacement Exhaust Pre-silencer

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

3606501102
93011118301
93011118303
1620500300
1620500200

The product you are viewing cross references to these numbers
Exhaust Pre-silencer. Made of polished stainless steel. PORSCHE 911 1974-89 with TÜV/EEC approved - 92.100, 92.100S, 93011118301, 93011118303, 1620500200, 1620500300 - 92.100S, 1620500300
1
Exhaust Pre-silencer. Made of polished stainless steel. PORSCHE 911 1974-89 with TÜV/EEC approved
91122092100S
Product Information
Product Information

Polished Stainless Steel Exhaust Pre-Silencer with TÜV / EEC approval.

Enhance the sound, appearance and longevity of your classic air-cooled Porsche with the Dansk Polished Stainless Steel Exhaust Pre-Silencer. Manufactured from high-quality polished stainless steel, this premium exhaust component provides excellent corrosion resistance, improved durability and a refined sports exhaust note while maintaining everyday drivability.

tuv
Fits:

  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50

Designed as a direct replacement for the factory pre-silencer, this Dansk unit is TÜV/EEC approved, making it suitable for owners seeking a quality exhaust upgrade that meets recognised European approval standards.

For added convenience, the pre-silencer is supplied with the lambda probe blanking screw already fitted, making installation quicker and easier where the oxygen sensor port is not required.

Whether you're restoring a classic 911, replacing a corroded exhaust component or upgrading your exhaust system, Dansk continues to be one of the most respected names in Porsche exhaust manufacturing.

What Does an Exhaust Pre-Silencer Do?

The pre-silencer forms part of the exhaust system between the heat exchangers and rear silencer.

Its primary functions include:

  • Reducing unwanted exhaust resonance.
  • Improving exhaust gas flow.
  • Producing a deeper, sportier exhaust note.
  • Helping maintain engine performance.
  • Supporting efficient exhaust scavenging.
  • Providing a balance between performance and everyday refinement.

A quality pre-silencer can improve both driving enjoyment and the overall character of the classic air-cooled flat-six engine.

Why Upgrade to a Stainless Steel Pre-Silencer?

Unlike original mild steel exhaust components, polished stainless steel offers significant long-term advantages.

Benefits include:

  • High-quality polished stainless steel construction.
  • Outstanding corrosion resistance. Longer service life.
  • Reduced maintenance. Improved exhaust appearance.
  • Deeper, more sporting exhaust sound.
  • Excellent fit and durability.
  • Suitable for both standard and upgraded exhaust systems.

Stainless steel construction helps ensure the exhaust system continues to perform and look its best for years to come.

Why Replace Your Exhaust Pre-Silencer?

The original pre-silencer is exposed to extreme temperatures, moisture and road contaminants throughout its life.

Replacement is recommended when:

  • The original unit has corroded.
  • Exhaust leaks have developed.
  • Internal baffles have deteriorated.
  • You want to improve exhaust sound.
  • Restoring a classic Porsche.
  • Replacing other exhaust components.
  • Upgrading to a stainless steel exhaust system.

Replacing ageing exhaust components helps maintain engine efficiency while restoring the appearance and sound of your Porsche.

Dansk Features:

  • Genuine Dansk performance exhaust component.
  • Manufactured from polished stainless steel.
  • Direct replacement for the original pre-silencer.
  • TÜV/EEC approved.
  • Corrosion-resistant construction.
  • Improved exhaust tone with refined sound characteristics.
  • Excellent durability and long service life.
  • Lambda probe blanking screw pre-installed for easier installation.
  • Precision manufactured for accurate fitment.
  • Ideal for restoration, servicing and performance upgrades.



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

91122092100S
92.100
92.100S
93011118301
93011118303
1620500200
1620500300

The product you are viewing cross references to these numbers
Pre-silencer. Made of steel with grey paint. PORSCHE 911 1974-89 with TÜV/EEC approved - 92.100, 92.100S, 93011118301, 93011118303, 1620500200, 1620500300 - 92.100, 1620500200
1
Pre-silencer. Made of steel with grey paint. PORSCHE 911 1974-89 with TÜV/EEC approved
91122092100
Product Information
Product Information

Dansk Steel Exhaust Pre-Silencer – Painted Grey
With TÜV / EEC approval.

Restore the performance and sound of your classic air-cooled Porsche with the Dansk Steel Exhaust Pre-Silencer for the Porsche 911 (1974-1989). Manufactured from high-quality steel with a protective grey painted finish, this OE-style replacement pre-silencer delivers dependable durability, precise fitment and the refined exhaust characteristics expected from one of the world's leading Porsche exhaust manufacturers.

tuv
Fits:

  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50

Designed as a direct replacement for the factory pre-silencer, this Dansk unit is TÜV/EEC approved, providing confidence that it meets recognised European quality and compliance standards.

For quicker installation, the pre-silencer is supplied with the lambda probe blanking screw already fitted, making it ideal for applications where the oxygen sensor port is not required.

Whether you're replacing a worn original component or restoring your classic Porsche to factory specification, this Dansk pre-silencer offers the quality and reliability trusted by Porsche enthusiasts worldwide.

What Does an Exhaust Pre-Silencer Do?

The pre-silencer is an important section of the exhaust system located between the heat exchangers and the rear silencer.

Its primary functions include:

  • Reducing unwanted exhaust resonance.
  • Producing a refined exhaust tone.
  • Helping maintain smooth exhaust gas flow.
  • Supporting efficient engine performance.
  • Minimising unwanted vibration within the exhaust system.
  • Contributing to overall driving comfort.

A properly functioning pre-silencer ensures the classic flat-six engine delivers its distinctive sound while maintaining balanced exhaust performance.

Why Replace the Exhaust Pre-Silencer?

Over time, exhaust components are exposed to extreme temperatures, moisture and road debris.

Common reasons for replacement include:

  • External corrosion.
  • Internal rust and deterioration.
  • Exhaust leaks.
  • Damaged mounting flanges.
  • Increased exhaust noise caused by internal failure.
  • Restoration of ageing exhaust systems.

Replacing a worn pre-silencer restores exhaust efficiency while helping eliminate leaks and unwanted noise.

Benefits of the Dansk Steel Pre-Silencer

Designed for long-lasting performance, this Dansk pre-silencer offers numerous advantages:

  • High-quality steel construction.
  • Durable grey protective paint finish.
  • OE-style fit and installation.
  • Refined factory-style exhaust sound.
  • Excellent durability.
  • TÜV/EEC approved.
    Supplied with
  • Supplied with lambda probe blanking screw already installed.
    Ideal for restoration and routine maintenance.
  • Ideal for restoration and routine maintenance.

Dansk products are manufactured to deliver dependable performance while preserving the original driving characteristics of the Porsche 911.

Dansk Features

  • Genuine Dansk exhaust component.
  • Steel construction with protective grey painted finish.
  • Direct replacement pre-silencer.
  • TÜV/EEC approved.
  • Precision manufactured for accurate fitment.
  • Restores factory exhaust performance.
  • Durable construction for long service life.
  • Lambda probe blanking screw pre-installed.
  • Suitable for standard exhaust systems.
  • Ideal for servicing, restoration and exhaust repairs.       



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

91122092100
92.100
92.100S
93011118301
93011118303
1620500200
1620500300

The product you are viewing cross references to these numbers
DISPLAYING 1 to 8 (of 8 products)
Also found on these pages
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.

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