Exhaust Fitting Kits
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FITTINGKIT05
Product Information
Fits:
Porsche 997 MKII Carrera 3.6L 2009>>
Porsche 997 MKII Carrera S 3.8L 2009>>
Kit Includes:
2 x Header Gaskets (Diagram Ref 2)
2 x Header to Cat Gaskets (Diagram Ref 8)
2 x Cats to Muffler Clamps (Diagram Ref 16)
*Click on the image to see a large parts diagram.
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Related, superseded, cross reference or alternative numbers for comparison.
FITTINGKIT05
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Product Information
Exhaust fitting kit. Fits:
Porsche 997 MKII Carrera 3.6L 2009>>
Porsche 997 MKII Carrera S 3.8L 2009>>
Kit Includes:
2 x Header Gaskets (Diagram Ref 2)
2 x Header to Cat Gaskets (Diagram Ref 8)
2 x Cats to Muffler Clamps (Diagram Ref 16)
*Click on the image to see a large parts diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FITTINGKIT05
99711111330
99711110730
99711122030
99711110731
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Exhaust manifold to cat gasket. Porsche 997 MKII (99711111330/1
2 x Exhaust manifold gasket. Porsche 997 Carrera MKII / 997 Turbo MKII / 987 Boxster MKII / 987C Cayman MKII (99711110731/1
2 x Exhaust Sleeve Catalytic Converter to Silencer. Porsche 997 Carrera 3.6L / 3.8L MKII (99711122030/1
Vehicle Group
Vehicle Group
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Price: €135.62 inc. VAT
In Stock - 24 Hour Dispatch
FITTINGKIT32
Product Information
Fits:
Porsche 997 MKII Carrera 3.6L 2009>>
Porsche 997 MKII Carrera S 3.8L 2009>>
Kit Includes:
2 x Cat to silencer gaskets (Diagram Ref 8)
6 x Cat to silencer gasket bolts (Diagram Ref 34)
6 x Cat to silencer gasket nuts (Diagram Ref 11)
2 x Centre silencer straps (Diagram Ref 12)
2 x Centre silencer strap bolts (Diagram Ref 13)
2 x Centre silencer to side silencer clamps (Diagram Ref 16)
2 x Tailpipe clamps (Diagram Ref 22)
*Click on the image to see a large parts diagram.
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FITTINGKIT32
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Product Information
Exhaust fitting kit for rear silencers and centre silencerFits:
Porsche 997 MKII Carrera 3.6L 2009>>
Porsche 997 MKII Carrera S 3.8L 2009>>
Kit Includes:
2 x Cat to silencer gaskets (Diagram Ref 8)
6 x Cat to silencer gasket bolts (Diagram Ref 34)
6 x Cat to silencer gasket nuts (Diagram Ref 11)
2 x Centre silencer straps (Diagram Ref 12)
2 x Centre silencer strap bolts (Diagram Ref 13)
2 x Centre silencer to side silencer clamps (Diagram Ref 16)
2 x Tailpipe clamps (Diagram Ref 22)
*Click on the image to see a large parts diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FITTINGKIT32
99711111330
90091000303
99711311931
90006736201
99711122030
99711124030
90007536502
N01024426
N 01024426
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Exhaust manifold to cat gasket. Porsche 997 MKII (99711111330/1
6 x Exhaust Lock Nut for Bolt. Porsche 964 (99908405202/1
2 x Exhaust muffler strap for Porsche 997.2 / 997TT.2 (99711311931
2 x Clutch Bolt. Porsche 944 / 924T / 924S (90006736201/1
2 x Exhaust Sleeve Catalytic Converter to Silencer. Porsche 997 Carrera 3.6L / 3.8L MKII (99711122030/1
2 x Exhaust tail pipe clamp in Titanium Porsche 997.2 / 991.1 / 991.2 (99711124030T
6 x Exhaust Manifold Titanium to Catalytic Converter Bolt. Porsche 997 / 987 / 981 / 991 (N01024426/T
Vehicle Group
Vehicle Group
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Price: €436.42 inc. VAT
Due In 26 Days
FITTINGKIT23
Product Information
Fits:
Porsche 997.2 Carrera 2009 - 2012
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FITTINGKIT23
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Product Information
Exhaust manifold fitting kit. Kit contains all gaskets, nuts and bolts required at fitting exhaust headers.Fits:
Porsche 997.2 Carrera 2009 - 2012
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FITTINGKIT23
99711110731
90007536502
99711111330
90091000303
99907353501
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Exhaust manifold gasket. Porsche 997 Carrera MKII / 997 Turbo MKII / 987 Boxster MKII / 987C Cayman MKII (99711110731/1
6 x Exhaust Manifold Titanium to Catalytic Converter Bolt. Porsche 997 / 987 / 981 / 991 (N01024426/T
2 x Exhaust manifold to cat gasket. Porsche 997 MKII (99711111330/1
6 x Exhaust Lock Nut for Bolt. Porsche 964 (99908405202/1
18 x Exhaust manifold bolt M8x21 for Porsche 987.2 / 997.2 / 981 / 991 / GT4 (99907353502
Vehicle Group
Vehicle Group
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Price: €119.08 inc. VAT
In Stock - 24 Hour Dispatch
FITTINGKIT23T
Product Information
Fitting titanium nuts and bolts to a Porsche exhaust system instead of the standard steel ones (which are prone to rusting) offers several clear advantages, especially in a high-heat, corrosive environment like the exhaust area.
Fits:
Porsche 997.2 Carrera 2009 - 2012
Advantages of Titanium over Steel for Exhaust Fasteners
• Corrosion Resistance, Titanium does not rust like steel, even when exposed to road salt, water, or exhaust gases.
• This makes it ideal for exhaust systems, where steel fixings often seize or corrode, making future removal difficult.
• Lightweight. Titanium is around 40–45% lighter than steel. On a Porsche, reducing unsprung or rear-end weight helps with performance, balance, and handling.
• High Strength-to-Weight Ratio, Titanium fasteners offer excellent tensile strength while being much lighter.
• This allows them to handle exhaust vibrations and thermal expansion without stretching or breaking.
• Heat Resistance, Titanium maintains its strength at much higher temperatures compared to standard steel.
• Exhaust areas can easily see 600–900°C, and titanium is much less likely to weaken under those conditions.
• No Seizing or Galling from Rust, Standard steel exhaust nuts often seize and require cutting or drilling during maintenance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FITTINGKIT23T
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Product Information
Exhaust manifold fitting kit. Kit contains all gaskets,
Titanium nuts and bolts required at fitting exhaust headers.Fitting titanium nuts and bolts to a Porsche exhaust system instead of the standard steel ones (which are prone to rusting) offers several clear advantages, especially in a high-heat, corrosive environment like the exhaust area.
Fits:
Porsche 997.2 Carrera 2009 - 2012
Advantages of Titanium over Steel for Exhaust Fasteners
• Corrosion Resistance, Titanium does not rust like steel, even when exposed to road salt, water, or exhaust gases.
• This makes it ideal for exhaust systems, where steel fixings often seize or corrode, making future removal difficult.
• Lightweight. Titanium is around 40–45% lighter than steel. On a Porsche, reducing unsprung or rear-end weight helps with performance, balance, and handling.
• High Strength-to-Weight Ratio, Titanium fasteners offer excellent tensile strength while being much lighter.
• This allows them to handle exhaust vibrations and thermal expansion without stretching or breaking.
• Heat Resistance, Titanium maintains its strength at much higher temperatures compared to standard steel.
• Exhaust areas can easily see 600–900°C, and titanium is much less likely to weaken under those conditions.
• No Seizing or Galling from Rust, Standard steel exhaust nuts often seize and require cutting or drilling during maintenance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FITTINGKIT23T
99711110731
90007536502
99711111330
90091000303
99907353501
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Exhaust manifold gasket. Porsche 997 Carrera MKII / 997 Turbo MKII / 987 Boxster MKII / 987C Cayman MKII (99711110731/1
6 x Exhaust Manifold Titanium to Catalytic Converter Bolt. Porsche 997 / 987 / 981 / 991 (N01024426/T
2 x Exhaust manifold to cat gasket. Porsche 997 MKII (99711111330/1
6 x Exhaust Titanium Lock Nut for Bolt . Porsche 964 (99908405202T
1 x Exhaust manifold Titanium bolt set M8x21 for Porsche 986 / 996 / 987.1 / 987.2 / 997.2 / 981 / 991 / GT4 (TITANTORXSHORT18
Vehicle Group
Vehicle Group
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Price: €208.75 inc. VAT
In Stock - 24 Hour Dispatch
99711122930/1KIT
Product Information
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99711122930
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Product Information
Exhaust support bracket sound absorber. (SET OF 4) Porsche 996 / 997 99711122930
4 pcs required per exhaust box bracket (8pcs or 2 sets required per car)
Fits:
- Porsche 996 C2 / C4
- Porsche 997 C2 / C4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99711122930
99711122930
99611122702
99611122802
99611122703
99611122803
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
4 x Exhaust vibration dampener for silencer bracket. Porsche 996 / 997 / 997.2 (99711122930/1
Vehicle Group
Vehicle Group
- 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 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Price: €32.52 inc. VAT
In Stock - 24 Hour Dispatch
SR069
Product Information
Holy broken bolts Batman! Even the latest generation of DFI (9A1) heads on the water-cooled engines are reporting broken exhaust bolts. Tasks ranging from a simple exhaust system update through an engine removal, are consistently plagued by snapped, rusted, and broken exhaust manifold bolts. Rarely can an accurate removal of the broken bolt be performed with the engine in the car, and even after removal, the task is time consuming and if not done carefully can lead to a damaged head or faulty repair. STOMSKI RACING's answer to these problems is the SR069, a kit that easily, accurately, and flexibly allows you to drill out the broken bolts - with the engine still in the car- saving time and headaches. A CNC milled plate indexes precisely off the broken bolts and/or bolt holes. Using our uniquely designed Thumb Screws, the SR069 plate is locked in place (by threading a Thumb Screw over a broken bolt or by using a supplied bolt threaded through the SR069 Thumb Screw). With the included pilot drills and drill guides, the faulty bolt can be drilled out, producing a perfectly perpendicular and centered hole that if necessary can be chased with an included M8x1.25 tap.
Kit includes anodized aluminum fixture, drill bits, tap with extension, drill jigs/guides, Thumb Screws, and hardware in a sturdy storage case. Also includes our SR065D drill guide.
Product Information
Exhaust bolt repair kit for Porsche DFI Engines on 911/997/991/ Boxster & Cayman (9A1) 2009-OnwardsHoly broken bolts Batman! Even the latest generation of DFI (9A1) heads on the water-cooled engines are reporting broken exhaust bolts. Tasks ranging from a simple exhaust system update through an engine removal, are consistently plagued by snapped, rusted, and broken exhaust manifold bolts. Rarely can an accurate removal of the broken bolt be performed with the engine in the car, and even after removal, the task is time consuming and if not done carefully can lead to a damaged head or faulty repair. STOMSKI RACING's answer to these problems is the SR069, a kit that easily, accurately, and flexibly allows you to drill out the broken bolts - with the engine still in the car- saving time and headaches. A CNC milled plate indexes precisely off the broken bolts and/or bolt holes. Using our uniquely designed Thumb Screws, the SR069 plate is locked in place (by threading a Thumb Screw over a broken bolt or by using a supplied bolt threaded through the SR069 Thumb Screw). With the included pilot drills and drill guides, the faulty bolt can be drilled out, producing a perfectly perpendicular and centered hole that if necessary can be chased with an included M8x1.25 tap.
Kit includes anodized aluminum fixture, drill bits, tap with extension, drill jigs/guides, Thumb Screws, and hardware in a sturdy storage case. Also includes our SR065D drill guide.
Vehicle Group
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S 3.0L (420 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 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Price: €496.17 inc. VAT
In Stock - 3- 5 Days Dispatch
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12 Month Warranty
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About Exhaust Fitting Kits
Exhaust Fitting Kits for Porsche | Complete Installation & Repair Solutions
The exhaust fitting kit is an essential component of any exhaust installation, replacement, or upgrade. It ensures that all joints, clamps, seals, and brackets in your Porsche’s exhaust system are correctly aligned and securely fastened, preventing leaks and maintaining proper exhaust flow.
At Design911, we supply a wide range of exhaust fitting kits designed to match Porsche exhaust systems with manufacturer-level accuracy. Each kit includes high-quality gaskets, clamps, bolts, nuts, seals, and mounting hardware, ensuring a professional, leak-free fit — whether you’re restoring a classic 911 or maintaining a modern performance model.
Our fitting kits are manufactured to exact tolerances from corrosion-resistant materials, guaranteeing a long-lasting seal and reliable performance under high-temperature, high-pressure conditions.
What Do Exhaust Fitting Kits Do?
An exhaust fitting kit provides the components required to properly install, secure, or replace sections of your Porsche’s exhaust system. These parts ensure stability, prevent vibration, and maintain airtight joints for optimum exhaust efficiency.
Core Functions:
- Seals
exhaust joints to prevent gas leaks and noise.
- Secures
exhaust components such as pipes, silencers, and catalytic converters.
- Reduces
vibration and movement caused by engine motion.
- Ensures
proper exhaust alignment for optimal flow and pressure balance.
- Maintains performance and compliance with emissions standards.
Using a dedicated Porsche exhaust fitting kit ensures your system functions exactly as intended — improving both performance and reliability.
Why Do Exhaust Fitting Components Fail?
Due to constant exposure to heat, vibration, and corrosive exhaust gases, fitting components are prone to wear over time.
Common Causes of Failure Include:
- Rust
and corrosion from road salt or moisture.
- Thermal
fatigue from repeated heating and cooling cycles.
- Loose
fittings causing leaks or rattles.
- Worn
seals or gaskets leading to reduced exhaust pressure.
- Cracked or weakened clamps and bolts from prolonged vibration.
A failing fitting kit can lead to loud exhaust noise, loss of performance, emission leaks, or even component misalignment. Replacing these parts is essential for safety, efficiency, and sound quality.
Why Replace or Upgrade Your Exhaust Fitting Kit?
Replacing old or damaged fitting components with precision-engineered replacements ensures your Porsche’s exhaust system performs at its best.
Key Benefits:
- Restores proper exhaust sealing and flow.
- Reduces exhaust leaks and unwanted noise.
- Improves durability and vibration resistance.
- Crafted from high-grade stainless steel and heat-resistant materials.
- Compatible with standard and performance exhaust systems.
- Direct-fit design for Porsche 911, Cayman, Boxster, Panamera, Macan and more.
Whether installing a new exhaust system or carrying out maintenance, using a complete fitting kit guarantees a professional finish and long-lasting results.
Highlights:
- Complete exhaust fitting kits for Porsche models.
- Includes clamps, bolts, gaskets, and seals for perfect alignment.
- Designed for precision fitment and long-term reliability.
- Prevents leaks and optimises exhaust pressure balance.
- Ideal for exhaust upgrades, repairs, and restorations.
- Manufactured from corrosion- and heat-resistant materials.
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