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Exhaust Catalyst to silencer clamp Porsche 997 GT2 / 997.2 / 991.1 / 991.2 Turbo ❭ 99711123081
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19

Fits:
Porsche 997 GT2 2008-2009 (engine M97.70+)
Porsche 997.2 Turbo / GT2 RS 2010-2013
Porsche 991.1 Turbo 2013-2016
Porsche 991.2 Turbo 2017-2020
Porsche 991 Carrera 2 3.0L (370 Bhp)
Porsche 991 Carrera 2S 3.0L (420 Bhp)
Porsche 991 Carrera 4 3.0L (370 Bhp)
Porsche 991 Carrera 4S 3.0L (420 Bhp)
Porsche 991 Cabriolet 2 3.0L (370 Bhp)
Porsche 991 Cabriolet 2S 3.0L (420 Bhp)
Porsche 991 Cabriolet 4 3.0L (370 Bhp)
Porsche 991 Cabriolet 4S 3.0L (420 Bhp)
Porsche 991 Targa 4 3.0L (370 Bhp)
Porsche 991 Targa 4S 3.0L (420 Bhp)
Porsche 991 GT2 RS 3.8L PDK (700 bhp)
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99711123081
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 1965-83
Click 'Zoom in' for large parts diagram.
Diagram ref no 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111115704
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
- 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 1965-89
Porsche 911 (930) Turbo 1975-89
Click 'Zoom in' for large parts diagram.
Diagram ref no 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90006716102
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
Heat
Exchanger Mounting Kit
Ensure a secure and reliable installation of
your air-cooled Porsche exhaust system with this OE Match Heat Exchanger
Mounting Kit. This complete hardware kit contains
the essential mounting components required when installing or replacing 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 1974-1976 2.7L / 1976 3.0 Carrera
Heat exchangers are exposed to constant heat cycles, moisture, road salt and vibration, making the original mounting hardware highly susceptible to corrosion, seized fasteners and fatigue. Reusing old hardware can make installation difficult and may compromise the security and alignment of the exhaust system.
This OE Match mounting kit provides the correct replacement hardware to ensure your heat exchangers are securely fitted, helping maintain proper exhaust sealing, reduce unwanted movement and support long-term reliability. Whether you're replacing heat exchangers, rebuilding an engine or carrying out a full restoration, installing new mounting hardware is always recommended.
Manufactured to OE Match standards, every component is designed for precise fitment and dependable performance.
What Does the Heat Exchanger Mounting Kit Do?
The mounting kit provides the hardware required to securely fasten the heat exchangers to the engine and exhaust system.
Its primary functions include:
- Securing the heat exchangers in the correct position.
- Maintaining proper exhaust alignment.
- Supporting effective exhaust sealing.
- Preventing movement caused by vibration.
- Providing reliable long-term fastening.
- Simplifying heat exchanger installation.
Using new mounting hardware helps ensure the exhaust system performs correctly while reducing the likelihood of future maintenance issues.
Why Replace Heat Exchanger Mounting Hardware?
Original exhaust hardware is subjected to extreme operating conditions and often deteriorates over time.
Common reasons for replacement include:
- Corroded nuts and fasteners.
- Seized or damaged hardware.
- Fatigued mounting components.
- Broken or rounded fasteners during removal.
- Exhaust restoration projects.
- Engine rebuilds.
- Heat exchanger replacement.
- Preventative maintenance.
Replacing the complete mounting hardware during installation helps ensure a secure fit and reduces the risk of future exhaust problems.
Features
- Designed for Porsche 911 (1963-1976).
- Complete installation hardware set.
- Precision manufactured for accurate fitment.
- High-quality, durable components.
- Helps ensure secure heat exchanger installation.
- Restores factory-style mounting.
- Ideal for restoration, repair and engine rebuilds.
- Suitable for replacing worn or corroded original hardware.
Why Choose OE Match Exhaust Components?
OE Match exhaust components and installation hardware are manufactured to deliver factory-quality fitment, durability and long service life. Designed specifically for classic Porsche applications, these components help ensure reliable installation while preserving the originality and performance of your vehicle. Whether you're carrying out a complete restoration or routine maintenance, OE Match products provide the quality expected by Porsche enthusiasts and professional workshops.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91011KIT
The product you are viewing cross references to these numbers
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