Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Exhaust Package
The Switchable Exhaust Kit “1 IN 2 OUT” with 76mm Straight Outlet RSR Style tail pipes is a complete OEM-quality exhaust system designed for classic Porsche 911 models. Featuring a single inlet and dual outlet configuration, this system combines improved exhaust flow with a more aggressive, sporty appearance and sound.
Kit Contents:
x1 Exhaust Heat Exchangers (Pair) (3606001102)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves (3606001104)
x1 Exhaust Tail Pipes 76mm Straight Outlet RSR Style (3606001106)
x6 Exhaust Gasket Heat Exchanger To Cylinder Head (93011119113/1)
x6 Exhaust Barrell Nut (99908500103/1)
x6 Exhaust Hexagon Nut (9000760250C)
x12 Exhaust Bolt (90007428203/1)
x2 Exhaust Gasket Heat Exchangers To Cross Over Pipe (93011119206/1)
x1 Exhaust Gasket Cross Over Pipe To Pre Silencer (93011119308/1)
x1 Exhaust Rear Silencer Gasket (91111119102/1)
x12 Exhaust Nut (90091009701/1)
x1 Switch Set For Sound Valves (9996001111)
Fits:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
What This Product Does:
- Channels exhaust gases efficiently through a single-in, dual-out system
- Improves exhaust flow compared to restrictive stock setups
- Produces a sportier, dual-exit exhaust note
- Enhances rear-end appearance with twin tailpipes
- Ensures correct alignment and installation with included hardware
Symptoms Of Wear Or Failure (Stock System):
- Exhaust leaks from corroded pipes or joints
- Rust or deterioration of silencers and pipework
- Excessive or abnormal exhaust noise
- Reduced engine performance due to restricted airflow
- Loose or failing mounting hardware
- Visible cracks or structural damage
Why Replacement Matters:
- Restores and improves exhaust flow for better engine efficiency
- Enhances exhaust sound, delivering a sportier tone
- Eliminates leaks and structural weaknesses
- Upgrades vehicle appearance with dual exhaust outlets
- Ensures long-term durability with high-quality materials
- Ideal for restoration or mild performance upgrades, maintaining classic Porsche character with added presence
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT911.1.3
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
The Switchable Sound Exhaust Kit “GT3” Style is a complete performance exhaust upgrade designed for classic Porsche 911 models. Inspired by Porsche GT3 motorsport systems, this kit combines free-flow exhaust components, pre-silencer, tailpipes, and mounting hardware to deliver improved performance, sound, and durability.
Kit Contents:
x1 Exhaust Heat Exchangers (Pair) (3606001102)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves (3606001103)
x1 Exhaust Cross Over Pipe (3606001107)
x6 Exhaust Gasket Heat Exchanger To Cylinder Head (93011119113/1)
x6 Exhaust Barrell Nut (99908500103/1)
x6 Exhaust Hexagon Nut (9000760250C)
x12 Exhaust Bolt (90007428203/1)
x2 Exhaust Gasket Heat Exchangers To Cross Over Pipe (93011119206/1)
x1 Exhaust Gasket Cross Over Pipe To Pre Silencer (93011119308/1)
x1 Exhaust Rear Silencer Gasket (91111119102/1)
x12 Exhaust Nut (90091009701/1)
x1 Switch Set For Sound Valves (9996001111)
Fits:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
What This Product Does:
- Improves exhaust gas flow by reducing backpressure
- Enhances engine performance and throttle response
- Produces a sportier, GT3-inspired exhaust sound
- Reduces overall system weight compared to stock exhausts
- Provides a complete exhaust solution with mounting hardware included
Symptoms Of Wear Or Failure (Stock System):
- Exhaust leaks from corroded pipes or joints
- Rust or corrosion on silencers and pipes
- Reduced engine performance due to restricted airflow
- Excessive exhaust noise from damaged components
- Loose or failing mounting hardware Visible cracks or structural fatigue
Why Replacement Matters:
- Restores and improves exhaust flow, boosting engine efficiency
- Enhances sound quality, delivering a sportier driving experience
- Prevents exhaust leaks and associated performance issues
- Reduces weight and improves responsiveness
- Provides long-term durability with stainless steel construction
- Ideal for restoration or performance upgrades, maintaining Porsche character with improved output
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT911.1.1
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC

The photo you see the new Dansk exhaust fitted with Dansk manifold set on a Porsche 911 (1978) WITHOUT the lower rear valance panel.
Fits:
Porsche 911 1965-79 Engines from 2.0L to 2.7L
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT14
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC

Fits:
Porsche 911 2.7L-3.0L 08/1973-07/1983
Exhaust conversion set, free-flow, with loose 84 mm tail pipe (When you fit this exhaust to a car with a conversional set up, ie: exhaust with cross over pipe and pre-silencer some pipes will need to be modified).
The set includes:
Exhaust rear silencer
Heat exchangers (left and right)
Oil pipe 91110772910
Oil pipe 91110773910
Metal bands
Mounting kit
Material: Stainless Steel
Number of Inlets / Outlets: 2/1
Surface: Blank
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620000310
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC

Fits:
Porsche 911 2.7-3.0L 08/1973-07/1983
Exhaust conversion set, free-flow, with 60 mm tail pipe. You will need to convert the oil pipe system due to change of heat exchangers's shape. All oil pipes necessary are provided with this kit.
Material: Stainless Steel
Number of Inlets / Outlets: 2/1
Outer Diameter: 60 mm
Surface: Blank
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620000810
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC

Fits:
Porsche 911 2.7L / 3.0L 08/1973-07/1983
Exhaust System Double End Pipe
Heating / Cooling with heating
Material Stainless Steel
Quantity Unit Kit
Surface Blank
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620000110
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Exhaust System Packages for Porsche | Performance, Precision & Sound
A well-designed exhaust system package is essential for maintaining your Porsche’s performance, efficiency, and distinctive exhaust tone. These complete systems replace worn or restrictive exhaust components with precision-engineered, high-flow assemblies that restore or enhance power delivery and sound quality.
At Design911, we offer a comprehensive selection of exhaust system packages for Porsche models — from classic 911s to modern GT-series vehicles. Each package includes key components such as silencers, manifolds, catalytic converters, and pipework, designed for optimal gas flow, reduced back pressure, and improved throttle response.
Manufactured from premium stainless steel, Inconel, or titanium, our exhaust kits are built for durability, corrosion resistance, and superior acoustic performance. Whether you’re restoring a vintage air-cooled model or tuning your track-ready GT3, these exhaust systems deliver a perfect balance of reliability, performance, and sound.
What Do Exhaust System Packages Do?
An exhaust system package channels exhaust gases away from the engine efficiently while controlling noise and emissions. A properly designed system ensures optimal engine breathing — improving power, torque, and overall efficiency.
Core Functions:
- Directs
exhaust gases safely from the engine.
- Reduces
back pressure to maximise power output.
- Controls
emissions via catalytic converters and mufflers.
- Enhances
exhaust tone for an authentic Porsche sound.
- Optimises gas flow for performance and reliability.
An upgraded exhaust system can also provide weight reduction, improved throttle response, and enhanced driving enjoyment.
Why Do Exhaust Systems Fail?
Over time, even the most durable exhaust systems deteriorate due to constant exposure to heat, vibration, and the elements.
Common Causes of Exhaust System Failure Include:
Corrosion
and rust, especially on mild steel systems.
When exhaust components fail, you may notice rattling sounds, loss of performance, strong fumes, or increased fuel consumption — all signs that replacement is needed.
Why Replace or Upgrade Your Exhaust System?
Replacing or upgrading your Porsche’s exhaust system ensures maximum performance, efficiency, and driving enjoyment.
Key Benefits:
- Restores optimal gas flow and back pressure.
- Improves horsepower and torque.
- Enhances sound and throttle response.
- Reduces weight for improved handling.
- Prevents leaks and emissions issues.
- Crafted from corrosion-resistant, high-grade materials.
- Direct-fit design for Porsche 911, Cayman, Boxster, Panamera, Macan and more.
Whether for performance tuning, restoration, or replacement, Design911’s exhaust system packages deliver the sound, precision, and reliability Porsche owners expect.
Highlights:
- Complete exhaust system packages for all Porsche models.
- Includes manifolds, silencers, catalytic converters, and pipes.
- Manufactured from stainless steel, Inconel, or titanium.
- Engineered for maximum performance and sound.
- Precision-fit designs for simple installation.
- Ideal for performance upgrades or restorations.