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DesignTek
DesignTek for Porsche
DesignTek parts for Porsche models from Design911
A Quick Look at DesignTek
DesignTek information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.
Choosing the Right Fit for Your Porsche
Where DesignTek is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector type where relevant.
- Typical reasons to choose these parts include fixing common wear points, returning a Porsche to standard performance, and managing running costs on older cars.
- Common triggers for replacement are leaks, knocks, worn mounts, poor ride quality, and intermittent operation of affected components.
- Watch for real-world symptoms such as hesitation, flat spots, noisy or restricted intake, warning lights, rough running, and reduced fuel economy.
- Before upgrading or tuning, ensure underlying mechanical issues are resolved rather than masked by new parts.
- When servicing or modifying, inspect adjacent components at the same time to avoid repeat labour or missed wear items.
- Check what fittings, seals, and hardware are included with each part and add any required extras so the job can be completed in one go.
Browse by Category
If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.
Engine Tuning — Engine tuning components for Porsche are typically used to improve drivability, throttle response, and power delivery, or to support other hardware changes where listed.
- Confirm the engine’s health and check for boost or vacuum leaks before any tuning work.
- Review sensor data, oil and coolant temperatures, and fuel delivery to ensure the car is mechanically sound.
Air Filters — Air filters for Porsche applications help maintain correct airflow while protecting the engine from dust and debris, with changes usually driven by routine service or performance goals.
- Replace filters more frequently if the car is used in dusty or harsh environments.
- Avoid over-oiling reusable filters to reduce the risk of sensor contamination where fitted.
Air Induction Kits — Air induction kits for Porsche are selected to alter airflow and sound and, where design allows, to reduce restriction or manage intake temperatures as part of a wider tuning package.
- Ensure the kit maintains proper sealing and sensible intake air temperatures to protect drivability.
- Check mounting security and routing after installation to minimise rattles, hot-air ingestion, or water exposure.
Service Parts — Service parts for Porsche are changed as part of scheduled maintenance to protect the engine and supporting systems, helping preserve performance, reliability, and efficiency.
- Use correct-specification oils, filters, plugs, and fluids and keep a clear record of what has been replaced.
- Shorten service intervals if the car sees frequent short journeys or hard use.
Air Filters — Replacement and performance air filters for Porsche applications are used to maintain clean, consistent airflow and can also support specific performance or motorsport needs where appropriate.
- Inspect the airbox or housing when changing the filter and ensure the seal seats evenly all the way around.
- If a performance filter is used, follow the maker’s cleaning and re-oiling instructions carefully.
Explore DesignTek at Design911
View the current DesignTek range for Porsche at Design911, then filter by model and category to narrow down to the right parts.
Fits:
Porsche 911 1974-89
Porsche 930 Turbo
Porsche 964 (965) Turbo M30.69 / M64.50
Designed to match the original factory layout, the pipe ensures proper exhaust gas flow between heat exchangers and exhaust components, helping maintain engine efficiency and authentic exhaust characteristics. The stainless steel construction provides a longer service life compared to mild steel alternatives, making it an ideal upgrade or replacement for ageing original parts.
Suitable for a wide range of classic 911 models, this DesignTek crossover pipe is perfect for restoration projects, routine maintenance, or performance-focused rebuilds.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011116905
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
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
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12 Month Warranty
Worldwide Delivery
Modification of the hanger position may be required.
Designed to deliver an OEM-like exhaust note with sound levels comparable to the original system.
Fits:
Porsche 986 Boxster 2.5L 1997-99*
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04
- For early 2.5L models, fitting kit 00004420011 is required.
Condition: This exhaust has not been run or used on a vehicle; however, due to handling, storage and inspection, it does show scratches, witness marks and cosmetic imperfections. For this reason, it is being offered at a reduced price. Please also note that some adjustment and manipulation during installation will be required to achieve the best possible fitment and tailpipe alignment.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606008604U
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
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12 Month Warranty
Worldwide Delivery
Designed to deliver an OEM-like exhaust note with sound levels comparable to the original system.
Fits:
Porsche 986 Boxster 2.5L 1997-99*
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04
- For early 2.5L models, fitting kit 00004420011 is required.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606008604
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
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12 Month Warranty
Worldwide Delivery
This is a used part which has been fitted and used briefly then taken off the vehicle due to not meeting expectations of the customer. This part is in good working order. Ideal for restoration specialists, collectors, or workshops looking for components at reduced cost.
Condition:
This Exhaust Muffler / Silencer Rear Box Race System DesignTek is a briefly used part. It has some fitting imperfections but in good / reusable working order.
Please see the gallery of images before purchasing.
Fits:
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606006401U
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
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12 Month Warranty
Worldwide Delivery
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 “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 “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
The Exhaust Kit “1 IN 2 OUT” Style with Double Walled Slash Cut Tailpipes is a complete OEM-quality exhaust system designed for classic Porsche 911 models. Featuring a single inlet, dual outlet configuration, this system is paired with double-walled, slash-cut tailpipes for a premium finish and enhanced durability.
Kit Contents:
x1 Exhaust Heat Exchangers (Pair) (3606001102)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves (3606001104)
x1 Exhaust Tail Pipes Double Walled Slash Cut (3606001108)
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 through a single-in, dual-out configuration
- Enhances engine performance and responsiveness
- Delivers a deeper, sportier exhaust note
- Features double-walled slash-cut tailpipes for improved heat resistance and premium styling
- Ensures correct installation and alignment with included hardware
- Exhaust leaks from corroded or damaged components
- Rust or deterioration of silencers and pipework
- Excessive or irregular exhaust noise
- Reduced engine performance due to restricted airflow
- Loose or failing mounting hardware
- Dented or worn exhaust tips affecting appearance
Why Replacement Matters:
- Restores and improves exhaust flow, enhancing engine efficiency
- Provides a sportier sound profile with dual outlet design
- Upgrades vehicle appearance with premium double-walled slash-cut tailpipes
- Eliminates leaks and structural weaknesses
- Ensures long-term durability with high-quality materials
- Ideal for restoration or performance upgrades, combining classic Porsche styling with modern refinement
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT911.1.4
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 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 Exhaust Kit “1 IN 1 OUT” Style is a complete OEM-quality exhaust system designed for classic Porsche 911 models. Featuring a single inlet and single outlet configuration, this setup provides a balanced combination of performance, sound, and originality.
Kit Contents:
x1 Exhaust Heat Exchangers (Pair) (3606001102)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves (3606001105)
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:
- Channels exhaust gases efficiently through a single-in/single-out system
- Maintains balanced backpressure for smooth engine performance
- Delivers a refined, classic exhaust note
- Ensures proper exhaust alignment with included mounting hardware
- Supports reliable engine operation and emissions performance
Symptoms Of Wear Or Failure (Stock System):
- Exhaust leaks from rusted or damaged pipes
- Corrosion or deterioration of the silencer or pipework
- Excessive or abnormal exhaust noise
- Reduced engine performance due to restricted flow
- Loose or failing mounting hardware
- Visible cracks or structural damage
Why Replacement Matters:
- Restores proper exhaust flow and engine efficiency
- Eliminates leaks and unwanted noise
- Maintains original driving characteristics and sound profile
- Ensures correct fitment and alignment with complete hardware
- Improves durability and longevity of the exhaust system
- Ideal for restoration projects, preserving OEM-style configuration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT911.1.2
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 DesignTek stainless steel exhaust heat exchangers are a high-quality aftermarket upgrade designed for the Porsche 911 2.7L / 3.0L Carrera (1974–1983). Combining exhaust flow efficiency with integrated cabin heating functionality, these units provide a reliable and performance-oriented replacement for original factory heat exchangers.
Sold As A Pair.
Fits:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L
Heat exchangers play a dual role in classic Porsche engines - they channel exhaust gases away from the engine while transferring heat to the cabin heating system. Over time, original units can corrode or crack due to constant heat cycles and exposure to road conditions, leading to reduced heating performance, exhaust leaks, and potential safety concerns.
Manufactured from durable stainless steel, these DesignTek heat exchangers offer improved resistance to corrosion and long-term durability compared to older mild steel designs. The optimised internal pipework supports better exhaust gas flow, which can contribute to improved engine efficiency and a more responsive driving experience. High-quality materials also help withstand extreme temperatures and vibrations typical of air-cooled flat-six engines.
Designed as a direct-fit replacement, these heat exchangers integrate with standard exhaust systems and heating components, making them suitable for both restoration projects and performance upgrades. Ideal for maintaining originality while benefiting from modern materials, they deliver a balance of reliability, performance, and classic Porsche functionality.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606001102
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
Shop Securely
12 Month Warranty
Worldwide Delivery
The DesignTek stainless steel exhaust cross over pipe is a high-quality aftermarket component designed for classic Porsche 911 models from 1975 to 1989. Engineered to improve exhaust system efficiency and durability, this cross over pipe is an ideal replacement for worn or corroded original units.
Fits:
Porsche 911 1974 - 1989
Porsche 930 Turbo
The cross over pipe plays a crucial role in the exhaust system by connecting the exhaust flow between both sides of the engine. By equalising exhaust gas pressure between the banks, it helps improve exhaust scavenging, reduce backpressure, and refine overall exhaust flow. This results in smoother engine operation, improved efficiency, and a more balanced exhaust tone.
Manufactured from high-grade stainless steel, this DesignTek pipe offers superior resistance to corrosion and heat compared to original mild steel components. It is built to withstand the extreme temperatures and conditions of air-cooled engines, ensuring long service life and reliable performance.
Designed as a direct-fit replacement, this cross over pipe integrates seamlessly with existing heat exchangers, silencers, or catalytic converter systems, making it suitable for restoration projects, maintenance, or performance upgrades. It is commonly used on both naturally aspirated 911 models and compatible 930 Turbo applications.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606001107
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
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
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12 Month Warranty
Worldwide Delivery
* for DesignTek Sport Exhaust muffler / silencer rear box (part number 3606001104)
Fits:
Porsche 911 1975 - 1989
- 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
Shop Securely
12 Month Warranty
Worldwide Delivery
* for DesignTek Sport Exhaust muffler / silencer rear box (part number 3606001104)
76mm Straight Outlet
Fits:
Porsche 911 1975 - 1989
- 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
Shop Securely
12 Month Warranty
Worldwide Delivery
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Saturday: Closed
Sunday: Closed