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
1 x Stainless steel Sports exhaust with big bore 84mm outlet,
2 x Stainless steel heat exchangers.
1 x Stainless steel Standard pre-silencer.
1 x Stainless steel cross over pipe.
This system offers more bhp and a fuller sound.
Fits:
Porsche 911 3.2L 1984-89
Please note: It is illegal to fit this product for road use on type-approved vehicles first used on or after 1/3/2001
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT11
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50

1 x Stainless steel Sports exhaust 60mm outlet,
2 x Stainless steel heat exchangers.
1 x Stainless steel Standard pre-silencer.
1 x Stainless steel Standard cross over pipe.
Fits:
Porsche 911 3.2L 1984-89
Please note: It is illegal to fit this product for road use on type-approved vehicles first used on or after 1/3/2001
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT11STD
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50

Mild steel exhaust system:
- 1 x Mild steel rear exhaust box.
- 2 x Mild steel heat exchangers.
- 1 x Mild steel pre-silencer.
- 1 x Mild steel cross over pipe.
Fits:
Porsche 911 1984-89 3.2L
Please note: It is illegal to fit this product for road use on type-approved vehicles first used on or after 1/3/2001
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT04
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50

Powerful straight though system all Stainless steel parts, offering more bhp and a fuller sound. Made in Denmark
Fits:
Porsche 911 1984-89 3.2L
Kit Includes:
- 1 x single outlet rear silencer (Dansk)
- 2 x heat exchangers, (Dansk)
- 2 x oil pipes
- 8 x gaskets.
- 2 x silencer straps.
Please note the heating system will need to be re-worked so extra parts are included 1 x heater splitter box and 2 x heater hoses. you should also purchase EXHAUSTKIT09
For more information about this product Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT06
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Are you backdating a 3.2 Carrera or 3.2ltr engine?
Use this exhaust and SSi heat exchanger package to solve the exhaust requirements by deleting the pre-silencer and turning the rear silencer into a "two in, one out" system seen on the early, pre impact bumper cars.
Heat Exchangers &
Single Outlet Rear Silencer/Muffler 84mm Tail Pipe 92.512SPowerful straight though system all Stainless steel parts, offering more bhp and a fuller sound. Made in Denmark you should also purchase EXHAUSTKIT09
Fits:
Porsche 911 1984-89 3.2ltr
Kit Includes:
- 1 x single outlet rear silencer (Dansk)
- 2 x heat exchangers, (SSI)
- 2 x oil pipes
- 8 x gaskets.
- 2 x silencer straps.
Please note the heating system will need to be re-worked so extra parts are included 1 x heater splitter box and 2 x heater hoses.
For more information about this product Click Here
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Are you backdating a 3.2 Carrera or 3.2ltr engine?
Use this exhaust and SSi heat exchanger package to solve the exhaust requirements by deleting the pre-silencer and turning the rear silencer into a "two in, one out" system seen on the early, pre impact bumper cars.

Fits:
Porsche 911 1984-89 3.2ltr
SSI Heat Exchangers & SSI Single Outlet Exhaust Silencer/Muffler
Powerful straight though system all Stainless steel parts, offering more bhp and a fuller sound. Made in Denmark
Kit Includes:
- 1 x single outlet rear silencer (SSI)
- 2 x heat exchangers, (SSI)
- 2 x oil pipes
- 8 x gaskets.
- 2 x silencer straps.
Please note the heating system will need to be re-worked so extra parts are included 1 x heater splitter box and 2 x heater hoses.
For more information about this product Click Here
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50

Are you backdating a 3.2 Carrera or 3.2ltr engine?
Use this twin outlet exhaust and SSi heat exchanger package to solve the exhaust requirements by deleting the pre-silencer and turning the rear silencer into a "two in, two out" system.
Porsche 911 1984-89 3.2L
SSI Heat Exchangers & SSI Twin Outlet Rear Silencer/Muffler
Powerful straight though system all Stainless steel parts, offering more bhp and a fuller sound.
Kit Includes:
- 1 x Twin outlet rear silencer (SSI)
- 2 x heat exchangers, (SSI)
- 2 x oil pipes
- 8 x gaskets.
- 2 x silencer straps.
Please note the heating system will need to be re-worked so extra parts are included 1 x heater splitter box and 2 x heater hoses.
For more information about this product Click Here
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
1 x Stainless steel Sports exhaust with twin big bore 84mm outlets.
2 x Stainless steel heat exchangers.
1 x Stainless steel Standard pre-silencer.
1 x Stainless steel cross over pipe.
offering more bhp and a fuller sound.
Fits:
Porsche 911 3.2L 1984-89
Please note: It is illegal to fit this product for road use on type-approved vehicles first used on or after 1/3/2001
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT21
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50

This set can be used when fitting the straight though system to Porsche 911 2.7L / 3.0L / SC / 3.2L. These parts will help with the air ducting and make a tidy finish instead of cutting holes on the existing tin ware
Fits:
Porsche 911 1974-83 2.7L / 3.0L
Porsche 911 1984-89 3.2L
Kit Includes:
- 2 x Side Tin Ware Left & Right
- 2 x End Tin ware with holes
-10 x Bolts Hex head
-10 x Washers
- 4 x Hose Clamps
- 2 x Heater Hoses
For more information about this product Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT09
The product you are viewing cross references to these numbers
- 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
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
This set can be used when fitting the straight though system to Porsche 911 2.7L / 3.0L / SC / 3.2L. These parts will help with the air ducting and make a tidy finish instead of cutting holes on the existing tin ware
Fits:
Porsche 911 1974-83 2.7L / 3.0L
Porsche 911 1984-89 3.2L
Kit Includes:
- 2 x Side Tin Ware Left & Right
- 2 x End Tin ware with holes
-10 x Bolts Hex head
-10 x Washers
- 4 x Hose Clamps
- 2 x Heater Hoses
For more information about this product Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT09.OEM
The product you are viewing cross references to these numbers
- 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
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50

Fits:
Porsche 911 3.2L 08/83-07/89
Please note: It is illegal to fit this product for road use on type-approved vehicles first used on or after 1/3/2001
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT1020
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50

Fits:
Porsche 911 3.2L 08/83-07/89
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT1010
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
The Switchable Valved Exhaust Kit “1 IN 1 OUT” Style is a complete OEM-quality exhaust system designed for classic Porsche 911 models. Featuring a single inlet, single outlet configuration with an integrated valve system, this setup allows drivers to switch between a refined, quieter exhaust note and a more aggressive, performance-focused sound.
Kit Contents:
x1 Exhaust Heat Exchangers (Pair) (3606001101)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves "1 IN 1 OUT" (3606001105)
x1 Exhaust Cross Over Pipe (3606001107)
x6 Exhaust Gasket Heat Exchanger To Cylinder Head (93011119112/1)
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 3.2L 1984-89
What This Product Does:
- Provides switchable exhaust sound control (quiet vs sport mode)
- Maintains balanced exhaust flow with 1-in-1-out configuration
- Enhances driving experience with adjustable sound levels
- Supports efficient exhaust gas flow Ensures complete installation with included mounting hardware
Symptoms Of Wear Or Failure (Stock System):
- Exhaust leaks from corroded or damaged components
- Rust or deterioration of silencers and pipes
- Restricted exhaust flow reducing engine performance
- Excessive or inconsistent exhaust noise
- Loose or failing mounting hardware
- Lack of sound control compared to modern valved systems
Why Replacement Matters:
- Restores proper exhaust function and flow
- Allows adjustable sound levels, combining comfort and performance
- Enhances driving enjoyment with on-demand sport exhaust tone
- Eliminates leaks and structural weaknesses
- Improves durability with high-quality materials
- Ideal for restoration or upgrade, adding modern functionality to classic Porsche models
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT911.2.2
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
The Switchable Valved Exhaust Kit “1 IN 2 OUT” Style with Double Walled Slash Cut Tailpipes is a complete OEM-quality performance exhaust system designed for classic Porsche 911 models.
Kit Contents:
x1 Exhaust Heat Exchangers (Pair) (3606001101)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves "1 IN 2 OUT" Style (3606001104)
x1 Exhaust Tailpipe Double Walled Slash Cut (3606001108)
x6 Exhaust Gasket Heat Exchanger To Cylinder Head (93011119112/1)
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 3.2L 1984-89
What This Product Does:
- Provides switchable exhaust sound control (quiet vs sport mode)
- Improves exhaust flow with a 1-in, 2-out configuration
- Enhances engine performance and responsiveness
- Delivers a deeper, sportier exhaust tone when valves are open
- Features double-walled slash-cut tailpipes for premium styling and durability
- Ensures correct fitment and alignment with complete mounting hardware
- Exhaust leaks from corroded or damaged components
- Rust or deterioration of pipes, silencers, or tailpipes
- Restricted airflow leading to reduced engine performance
- Excessive or irregular exhaust noise
- Loose or failing mounting hardware
- Worn or damaged exhaust tips affecting appearance
Why Replacement Matters:
- Restores and improves exhaust flow, enhancing engine efficiency
- Provides adjustable sound levels, combining comfort and performance
- Enhances driving experience with on-demand exhaust tone
- Upgrades vehicle appearance with premium slash-cut tailpipes
- Eliminates leaks and structural weaknesses
- Ensures long-term durability with high-quality materials
- Adds modern functionality to classic Porsche models while maintaining character
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT911.2.4
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
The Switchable Valved Exhaust Kit “1 IN 2 OUT” Style is a complete OEM-quality performance exhaust system designed for classic Porsche 911 models. Featuring a single inlet, dual outlet configuration with an integrated valve system, this kit delivers both enhanced performance and adjustable exhaust sound.
Kit Contents:
x1 Exhaust Heat Exchangers (Pair) (3606001101)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves "1 IN 2 OUT" Style (3606001104)
x1 Exhaust Tailpipe 76mm Straight Outlet RSR Style (3606001106)
x6 Exhaust Gasket Heat Exchanger To Cylinder Head (93011119112/1)
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 3.2L 1984-89
What This Product Does:
- Provides switchable exhaust sound (quiet mode vs sport mode)
- Improves exhaust flow with a 1-in, 2-out configuration
- Enhances engine performance and throttle response
- Delivers a deeper, more aggressive exhaust tone when valves are open
- Improves rear-end aesthetics with dual exhaust outlets
- Ensures complete installation with included hardware
Symptoms Of Wear Or Failure (Stock System):
- Exhaust leaks from corroded or damaged pipes
- Rust or deterioration of silencers and exhaust components
- Restricted airflow reducing engine efficiency
- Excessive or inconsistent exhaust noise
- Loose or failing mounting hardware
- Lack of sound control compared to modern valved systems
Why Replacement Matters:
- Restores and improves exhaust flow, enhancing engine efficiency
- Provides adjustable sound levels, from refined to sporty
- Enhances driving experience with on-demand exhaust tone
- Eliminates leaks and structural weaknesses
- Improves durability with high-quality materials
- Adds modern functionality to classic Porsche models while maintaining character
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT911.2.3
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
The Switchable Valved Exhaust Kit “GT3” Style is a complete performance exhaust system designed for classic Porsche 911 models. Inspired by Porsche GT3 motorsport design, this system delivers enhanced exhaust flow, aggressive sound, and a performance-focused aesthetic.
Kit Contents:
x1 Exhaust Heat Exchangers (Pair) (3606001101)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves "GT3" Style (3606001103)
x1 Exhaust Cross Over Pipe (3606001107)
x6 Exhaust Gasket Heat Exchanger To Cylinder Head (93011119112/1)
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 3.2L 1984-89
What This Product Does:
- Optimises exhaust gas flow with reduced backpressure
- Enhances engine performance and throttle response
- Produces a louder, sportier GT3-style exhaust note
- Improves exhaust system efficiency
- Provides a complete installation solution with included hardware
Symptoms Of Wear Or Failure (Stock System):
- Exhaust leaks from corroded or damaged joints
- Rust or deterioration of pipes and silencers
- Reduced engine performance due to restricted airflow
- Excessive or irregular exhaust noise
- Loose or failing mounting hardware Visible cracks or structural fatigue
Why Replacement Matters:
- Restores and improves exhaust flow, boosting engine efficiency
- Enhances driving experience with a more aggressive sound
- Prevents exhaust leaks and structural issues
- Reduces system weight compared to older OEM setups
- Ensures long-term durability with upgraded materials
- Ideal for restoration or performance upgrades, combining classic Porsche styling with motorsport-inspired performance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT911.2.1
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
-
crankcase left 911 1987-89 101-05
-
crankcase right 911 1987-89 101-10
-
engine lubrication oil pump lines 911 1987-89 104-00
-
engine lubrication oil tank lines 911 1987-89 104-01
-
air duct 911 1987-89 105-05
-
air duct engine cover 911 1987-89 105-10
-
L-JETRONIC I 911 CARRERA 930.20/25/26 1987-89 107-00
-
L-JETRONIC II 911 CARRERA 930.20/25/26 1987-89 107-05
-
L-JETRONIC III 911 CARRERA 930.20/25/26 1987-89 107-10
-
fuel system front 911 1987-89 201-00
-
air injection 911 CARRERA 930.26 1987-89 108-00
-
additional blower 911 CARRERA 930.20/25/26 1987-89 108-10
-
tank ventilation 911 1987-89 201-15
-
carbon canister 911 1987-89 201-20
-
exhaust system 911 CARRERA 930.20/25/26 1987-89 202-00
-
exhaust system 911 CARRERA 930.20/25/26 1987-89 202-05
-
heating air supply 911 1987-89 202-20
-
tensioning plate shift control lock device 5-speed 911 1987-89 304-05
-
brake line front 911 1987-89 604-05
-
bumper front 911 1987-89 802-00
-
front apron, front spoiler, carrera 911 1987-89 802-01
-
bumper rear 911 1987-89 802-05
-
lid rear 911 1987-89 803-05
-
accessories doors 911 1987-89 804-00
-
installation parts doors 911 1987-89 804-05
-
power windows 911 1987-89 804-10
-
convertible top, clamp, single parts 911 CABRIO 1987-89 811-13
-
convertible top covering, seal, single parts 911 CABRIO 1987-89 811-15
-
convertible top driving mechanism 911 CABRIO M439 1987-89 811-21
-
convertible top, catch electrically adjustable 911 CABRIO M439 1987-89 811-22
-
convertible top covering, convertible top frame, single parts 911 SPEEDSTER 1989 811-31
-
ventilation heating system - 2 - 911 1987-89 813-01
-
cooling air duct Left-Hand Drive Cars 911 1987-89 813-10
-
compressor mounting driving mechanism 911 1987-89 813-20
-
condenser lines accessories and others front 911 1987-89 813-45
-
engine electrics - 2 - 911 CARRERA M30.20/25/26 1987-89 901-02
-
engine electrics - 3 - 911 1987-89 901-03
-
battery, starter, generator 911 1987-89 902-05
-
windscreen wiper system 911 1987-89 904-00
-
rear window wiper 911 1987-89 904-05
-
additional brake light 911 1987-89 905-10
-
speedometer 911 1987-89 906-05
-
cruise control 911 1987 907-00
-
cruise control 911 1988-89 907-01
-
heating additional blower 911 1987-89 908-00
-
radio loudspeaker installation parts 911 1987-89 911-00
-
pedals for accelerator control 911 1987-89 702-10
-
interior equipment: doors 911 1987-89 807-10
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.