Heat Exchangers
- 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
- 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)


Fits:
Porsche 911 1969-77
Porsche 914-6 1970-76
Porsche 924 1976-79
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9000751480Y
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 924 2.0L 1976-79
- Porsche 914 (1970-1976)


Fits:
Porsche 911 1969-77
Porsche 914-6 1970-76
Porsche 924 1976-79
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9000751480Y
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 924 2.0L 1976-79
- Porsche 914 (1970-1976)


Fits:
Porsche 911 1974-84
*If using with 1985 onwards 3.2L you may need 6x 93011119112 42mm bore Manifold gaskets
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG91121100
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 / *3.2L 08/73-07/85
*If used with 1984 onwards 3.2L you may need 6x 93011119112/1 42mm bore Manifold gaskets
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG91121100
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

Fits:
Porsche 911 3.2L 08/1983 - 08/1989
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1623107210
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 these SSi heat exchangers 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.
Made using Ø41 mm outside tubing for a better flow and performance these AISI 321/EN4531 titanium stabilized stainless steel heat exchangers offer long life, increased power output and a quality fit.
Price is for a SET OF 2
Fits:
Porsche 911 (Conversion) 3.2ltr 08/1983 - 07/1989
Core Length: 470 mm
Core Width: 760 mm
Core Depth: 380 mm
Outer diameter: 41 mm
LONG LIFE
Made using AISI 321/EN4531 titanium stabilized stainless steel the expected life in the severest road conditions (salt) is 20-30 years.
HIGHER POWER OUTPUTOutput is increased particularly in the low and middle RPM ranges. The design makes power by minimizing intake charge disturbances at valve overlap, and increasing the exhaust gas extraction effect. The volumetric efficiency, and thereby the power output is increased. The SSI headers are significantly improved versions of the basic header design used by Porsche on all normally aspirated six cylinder competition engines.
CARBON MONOXIDE SAFE
Unlike all other aftermarket heat exchangers, the SSI heat exchanger headers are made to minimize the possibility that engine produced acids will internally corrode the enclosed primary tubes, thereby allowing carbon monoxide to enter the passenger compartment. The AISI 304 stainless steel tubing is highly resistant to the by products of combustion. SSI use only one piece primary tubes, eliminating the possibility of hand-made welds cracking, and the resulting carbon monoxide leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1623106810
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
Are you carrying out an engine swap to fit a 964 / 993 3.6ltr to an early 911?
Use these SSi heat exchangers 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.
Made using Ø41 mm outside tubing for a better flow and performance these AISI 321/EN4531 titanium stabilized stainless steel heat exchangers offer long life, increased power output and a quality fit.

IMPORTANT: Major modification needed on engine tin ware when installing on 3,6ltr engines.
Price is for a SET OF 2
Fits:
Porsche 911 (Conversion) 3.6ltr 01/1963 - 07/1989
Core Length: 470 mm
Core Width: 750 mm
Core Depth: 370 mm
Outer diameter: 41 mm
LONG LIFE
Made using AISI 321/EN4531 titanium stabilized stainless steel the expected life in the severest road conditions (salt) is 20-30 years.
HIGHER POWER OUTPUTOutput is increased particularly in the low and middle RPM ranges. The design makes power by minimizing intake charge disturbances at valve overlap, and increasing the exhaust gas extraction effect. The volumetric efficiency, and thereby the power output is increased. The SSI headers are significantly improved versions of the basic header design used by Porsche on all normally aspirated six cylinder competition engines.
CARBON MONOXIDE SAFE
Unlike all other aftermarket heat exchangers, the SSI heat exchanger headers are made to minimize the possibility that engine produced acids will internally corrode the enclosed primary tubes, thereby allowing carbon monoxide to enter the passenger compartment. The AISI 304 stainless steel tubing is highly resistant to the byproducts of combustion. SSI use only one piece primary tubes, eliminating the possibility of hand-made welds cracking, and the resulting carbon monoxide leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1623107110
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
Improve exhaust gas flow using these "big bore" SSi heat exchangers.
Made using Ø41 mm outside tubing for a better flow and performance these AISI 321/EN4531 titanium stabilized stainless steel heat exchangers offer long life, increased power output and a quality fit.

Fits:
Porsche 911 (carb.) Europe 2.0ltr 01/63-07/73
Porsche 911 (carb.) USA 2.0ltr -2.4ltr 08/65-07/71
Porsche 911 (inj.) Europe 2.0ltr - 2.4ltr 08/68-07/71
Porsche 911 (inj.) USA 2.0ltr -2.4ltr 08/68-07/71
Porsche 911 Europe 2.7ltr 08/73-07/75
Porsche 911 Europe 3.0ltr 08/77-07/83
Porsche 911 USA Federal 2.7ltr 08/74-07/75
Porsche 911 USA Federal 3.0ltr 08/77-07/78
Price is for a SET OF 2
LONG LIFE
Made using AISI 321/EN4531 titanium stabilized stainless steel the expected life in the severest road conditions (salt) is 20-30 years.
HIGHER POWER OUTPUT
Output is increased particularly in the low and middle RPM ranges. The design makes power by minimizing intake charge disturbances at valve overlap, and increasing the exhaust gas extraction effect. The volumetric efficiency, and thereby the power output is increased. The SSI headers are significantly improved versions of the basic header design used by Porsche on all normally aspirated six cylinder competition engines.
CARBON MONOXIDE SAFE
Unlike all other aftermarket heat exchangers, the SSI heat exchanger headers are made to minimize the possibility that engine produced acids will internally corrode the enclosed primary tubes, thereby allowing carbon monoxide to enter the passenger compartment. The AISI 304 stainless steel tubing is highly resistant to the byproducts of combustion. SSI use only one piece primary tubes, eliminating the possibility of hand-made welds cracking, and the resulting carbon monoxide leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133091911SSI41
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

Price is for a SET OF 2

Fits: USA MODELS
PORSCHE 911 07/77 - 06/80 3.0L Petrol 180bhp 930.03, 930.13
PORSCHE 911 09/79 - 06/80 3.0L Petrol 188bhp 930.09, 930.19
PORSCHE 911 08/80 - 07/83 3.0L Petrol 204bhp 930.10
PORSCHE 911 03/74 - 10/83 3.0L Petrol 209bhp From 1979/08, To 1983/07
LONG LIFE
Made using AISI 321/EN4531 titanium stabilized stainless steel the expected life in the severest road conditions (salt) is 20-30 years.
Output is increased particularly in the low and middle RPM ranges. The design makes power by minimizing intake charge disturbances at valve overlap, and increasing the exhaust gas extraction effect. The volumetric efficiency, and thereby the power output is increased. The SSI headers are significantly improved versions of the basic header design used by Porsche on all normally aspirated six cylinder competition engines.
CARBON MONOXIDE SAFE
Unlike all other aftermarket heat exchangers, the SSI heat exchanger headers are made to minimize the possibility that engine produced acids will internally corrode the enclosed primary tubes, thereby allowing carbon monoxide to enter the passenger compartment. The AISI 304 stainless steel tubing is highly resistant to the byproducts of combustion. SSI use only one piece primary tubes, eliminating the possibility of hand-made welds cracking, and the resulting carbon monoxide leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1623105110
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC

Price is for a SET OF 2

Fits:
911 (inj.) Europe 2.4L 08/71-07/73
911 (inj.) USA 2.2L-2.4L 08/71-07/73
911 Carrera Europe 2.7L 08/73-07/75
LONG LIFE
Made using AISI 321/EN4531 titanium stabilized stainless steel the expected life in the severest road conditions (salt) is 20-30 years.
HIGHER POWER OUTPUT
Output is increased particularly in the low and middle RPM ranges. The design makes power by minimizing intake charge disturbances at valve overlap, and increasing the exhaust gas extraction effect. The volumetric efficiency, and thereby the power output is increased. The SSI headers are significantly improved versions of the basic header design used by Porsche on all normally aspirated six cylinder competition engines.
CARBON MONOXIDE SAFE
Unlike all other aftermarket heat exchangers, the SSI heat exchanger headers are made to minimize the possibility that engine produced acids will internally corrode the enclosed primary tubes, thereby allowing carbon monoxide to enter the passenger compartment. The AISI 304 stainless steel tubing is highly resistant to the byproducts of combustion. SSI use only one piece primary tubes, eliminating the possibility of hand-made welds cracking, and the resulting carbon monoxide leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133091913SSI
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

Are you backdating a 3.2 Carrera or 3.2ltr engine?
Use these SSi heat exchangers 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 3.2L Conversion SSI
*Oil pipes 91110772910 and 91110773910 are also required also see our exhaust packages
Modification is needed on the engine tinware when installing on 3.2ltr engines.
LONG LIFE
Made using AISI 321/EN4531 titanium stabilized stainless steel the expected life in the severest road conditions (salt) is 20-30 years.
HIGHER POWER OUTPUT
Output is increased particularly in the low and middle RPM ranges. The design makes power by minimizing intake charge disturbances at valve overlap, and increasing the exhaust gas extraction effect. The volumetric efficiency, and thereby the power output is increased. The SSI headers are significantly improved versions of the basic header design used by Porsche on all normally aspirated six cylinder competition engines.
CARBON MONOXIDE SAFE
Unlike all other aftermarket heat exchangers, the SSI heat exchanger headers are made to minimize the possibility that engine produced acids will internally corrode the enclosed primary tubes, thereby allowing carbon monoxide to enter the passenger compartment. The AISI 304 stainless steel tubing is highly resistant to the byproducts of combustion. SSI use only one piece primary tubes, eliminating the possibility of hand-made welds cracking, and the resulting carbon monoxide leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133091917SSI
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50


Replace the rusty, steel heat exchangers with these high quality stainless steel SSi units.
Made using AISI 321/EN4531 titanium stabilized stainless steel, these heat exchangers offer long life, increased power output and a quality fit.
Price is for a SET OF 2
Fits:
K-jet (none mechanical injection engines)
911 (carb.) Europe 2.0L 01/63-07/73
911 (carb.) USA 2.0L-2.4L 08/65-07/71
911 (inj.) Europe 2.0L-2.4L 08/68-07/71
911 (inj.) USA 2.0L-2.4L 08/68-07/71
911 Europe 2.7L 08/73-07/75
911 Europe 3.0L 08/77-07/83
911 USA Federal 2.7L 08/74-07/75
911 USA Federal 3.0L 08/77-07/78
LONG LIFE
Made using AISI 321/EN4531 titanium stabilized stainless steel the expected life in the severest road conditions (salt) is 20-30 years.
HIGHER POWER OUTPUT
Output is increased particularly in the low and middle RPM ranges. The design makes power by minimizing intake charge disturbances at valve overlap, and increasing the exhaust gas extraction effect. The volumetric efficiency, and thereby the power output is increased. The SSI headers are significantly improved versions of the basic header design used by Porsche on all normally aspirated six cylinder competition engines.
CARBON MONOXIDE SAFE
Unlike all other aftermarket heat exchangers, the SSI heat exchanger headers are made to minimize the possibility that engine produced acids will internally corrode the enclosed primary tubes, thereby allowing carbon monoxide to enter the passenger compartment. The AISI 304 stainless steel tubing is highly resistant to the byproducts of combustion. SSI use only one piece primary tubes, eliminating the possibility of hand-made welds cracking, and the resulting carbon monoxide leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133091911SSI
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 3.2L Conversion SSI STYLE
*Oil pipes 91110772910 and 91110773910 are also required also see our exhaust packages
Special performance: Can replace 91133091104S heaters, but stock exhaust must be changed to two inlet pipe system Polished Stainless steel.
HIGHER POWER OUTPUT
Output is increased particularly in the low and middle RPM ranges. The design makes power by minimizing intake charge disturbances at valve overlap, and increasing the exhaust gas extraction effect. The volumetric efficiency, and thereby the power output is increased.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9113309101
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Stainless steel. Left or Right - Please select below.
G50 cars only
Fits:
Porsche 911 1987-89 3.2L
Porsche 930 TURBO 1987-89 3.3L
Please note the flaps don't come with holes to accommodate caloric sensor. You may need to drill the holes for the rivets.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91121101
The product you are viewing cross references to these numbers
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)


Fits:
Porsche 911/911S/Carrera 3.0 1975-77
Porsche 911 SC 1978-83
Click 'zoom in' for large parts diagram.
Diagram ref no 22
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91121155300
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


Novel ultra-high-performance product
• Use of Inconel 718 and aerospace technology
• Extreme perceived quality
Contains 12 x Studs, Nuts & Washers
Fits:
Porsche 911 1965-77
Porsche 964 (non Turbo)
Porsche 993 All
Porsche 996 (non Turbo)
Porsche 997 (non Turbo)
Porsche 986 All
Porsche 987 All
Porsche 718 4 Cyl Turbo
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SL-In-12
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
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- Porsche Boxster T 718 2.0L Manual (300 Bhp)
- Porsche Boxster T 718 2.0L PDK (300 Bhp)
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
- 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 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
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
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Title: Upgrading Your Porsche with Exhaust Heat Exchangers: Technical Specifications and Benefits
Improved Performance: Upgrading your Porsche's exhaust heat exchangers, whether with an original Porsche or after-market option, can significantly enhance your vehicle's performance. The improved design and materials used in these heat exchangers help to optimize exhaust flow, resulting in increased horsepower and torque.
Efficient Heat Dissipation: Exhaust heat exchangers play a crucial role in dissipating the excess heat generated by your Porsche's engine. Upgrading to high-quality heat exchangers ensures efficient heat dissipation, preventing overheating issues and prolonging the life of your engine.
Enhanced Durability: Original Porsche or after-market exhaust heat exchangers are built using durable materials, such as stainless steel or high-grade alloys. These robust components offer superior resistance to corrosion, heat, and vibrations, ensuring long-lasting performance and reliability.
Emissions Compliance: Upgrading your Porsche's exhaust heat exchangers can help your vehicle comply with emissions regulations. Many aftermarket options are designed to meet or exceed emission standards while maintaining optimum performance levels.
Precise Fitment: When purchasing exhaust heat exchangers for your Porsche, it is crucial to ensure they are specifically designed to fit your vehicle model and engine type. This ensures a seamless installation process and optimal functionality.
At Design911, we specialize in providing high-quality Porsche parts, including original Porsche and after-market exhaust heat exchangers. Our extensive inventory and knowledgeable staff allow us to help you find the correct part for your Porsche model. We offer professional advice, ensuring you make an informed decision based on your specific requirements. Trust us to provide the best solutions to upgrade or replace your Porsche's exhaust heat exchangers, improving performance, durability, and overall driving experience. Contact us today to explore our range of Porsche parts and benefit from our expertise.