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- 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
OE Match exhaust clamping sleeve / exhaust clamp designed to secure and join exhaust components in the Porsche Boxster 986 (1997–2004) exhaust system. It functions as a durable connector between the catalytic converter and U-bend / silencer pipes, helping maintain a tight exhaust joint.
Sold as: Single clamp (two may be required per complete joint).
Fits:
Porsche 986 Boxster 1997 - 2004
Diagram ref no 15
The exhaust clamping sleeve secures two sections of the exhaust - typically where the catalytic converter outlet meets the U-bend or silencer pipe. It ensures a firm, vibration-resistant connection that prevents exhaust leakage, reduces noise, and supports proper exhaust routing. A good clamp helps the exhaust stay aligned under heat expansion and road vibration, reducing stress on nearby hangers and components.
Function:
• Joins exhaust sections securely (catalytic converter to U-bend/silencer)
• Prevents exhaust leaks by maintaining a tight pipe connection
• Absorbs movement and heat expansion without loosening
• Supports proper alignment of the exhaust system under operating loads.
Without a sound clamp, exhaust joints can leak hot gases, which leads to reduced performance, unwanted noise, and possible component wear.
Exhaust clamps live in a high-heat, corrosive environment, and over time the original sleeve can:
• Corrode or rust, reducing clamp effectiveness
• Lose clamping force from heat cycling
• Allow exhaust leaks at pipe connections
• Cause excess exhaust noise or vibration.
Replacing worn or damaged clamps with OE Match units helps ensure a tight seal, prevents exhaust gas escape, and protects other exhaust components from undue movement or stress.
When to replace. Replace this exhaust clamp when:
• You remove or refit the exhaust system (e.g., catalytic converter or silencer)
• The existing clamp is corroded, bent, or stretched
• You notice exhaust leaks, noise, or vibration at the joint
• Replacement or servicing of exhaust components causes fitment issues
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611111001
The product you are viewing cross references to these numbers
- 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
The OE Match Exhaust Fitting Kit is a comprehensive installation kit designed to provide the essential hardware required for the secure installation or replacement of the exhaust system on compatible Porsche models. Manufactured to OE specifications for fit, strength and durability, the kit contains the necessary fasteners, clamps, nuts, bolts, washers and sealing components (where applicable) to ensure a safe, leak-free exhaust installation.
Kit Includes:
2 x Header Gaskets (Diagram Ref 3)
2 x Header to Cat Gaskets (Diagram Ref 7)
2 x Cats to Muffler Clamps (Diagram Ref 29)
2 x Muffler to Tail Pipe Clamps (Diagram Ref 22)
Fits:
- 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
Manufactured from high-quality corrosion-resistant materials, each component is engineered to withstand the extreme temperatures, vibration and harsh environmental conditions experienced by the exhaust system. Ideal for replacing worn or corroded original hardware, this fitting kit helps ensure a professional-quality installation while reducing the risk of exhaust leaks and loose components.
What This Product Does:
- Provides the essential hardware required for exhaust system installation.
- Secures exhaust components together safely and correctly.
- Helps create leak-free exhaust connections.
- Replaces worn, corroded or seized original fixings.
- Supports correct exhaust alignment and fitment.
- Reduces exhaust vibration and movement.
- Helps simplify exhaust repair and replacement work.
- Forms an essential part of a complete exhaust system installation.
Symptoms Of Wear Or Failure:
- Exhaust gas leaks.
- Rattling or vibrating exhaust components.
- Loose exhaust system sections.
- Corroded or seized nuts and bolts.
- Broken clamps or mounting hardware.
- Exhaust blowing noises.
- Difficulty removing old exhaust components during servicing.
- Misaligned exhaust system.
- Increased vibration through the vehicle.
- Visible rust or deterioration of fixing hardware.
Why Replacement Matters:
- Exhaust fittings operate in one of the harshest environments on the vehicle, where they are exposed to extreme heat, moisture, road salt and constant vibration. Over time, nuts, bolts, clamps and other fixings can corrode, seize or lose their clamping force, making the exhaust system susceptible to leaks and movement.
- Reusing old or damaged hardware when fitting a replacement exhaust can result in poor sealing, premature component failure and increased installation time. Loose or leaking exhaust joints may lead to unwanted noise, reduced engine performance and potential exhaust gas leakage.
- Replacing the complete exhaust fitting hardware during installation ensures secure mounting, correct alignment and reliable sealing of the exhaust system. The OE Match Exhaust Fitting Kit provides factory-style fitment, durable corrosion-resistant components and dependable long-term performance, making it the ideal choice for exhaust repairs, upgrades and routine maintenance on your Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHFITTING.996.1.7
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- 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 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Mounting Kit for Catalytic Converter
Complete your Porsche exhaust installation with this OE
Match Catalytic Converter Mounting Kit. This comprehensive
installation kit contains all the essential hardware required to correctly fit
replacement catalytic converters or dummy catalytic pipes, ensuring a secure,
leak-free installation and long-lasting reliability.
Fits:
- 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 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Rather than reusing old, corroded or heat-damaged fasteners, this kit provides new clamps, exhaust gaskets, nuts and bolts, allowing professional-quality installation while reducing the risk of exhaust leaks, loose joints and seized fixings.
The kit is specifically designed for use with the following Design911 replacement components:
99611196260S, 996PO96260S, 996PO96270SWhether you're replacing worn catalytic converters, installing sports catalytic converters or fitting dummy catalytic pipes for motorsport applications, this OE Match mounting kit provides everything needed to complete the installation correctly.
Kit Contents
This complete fitting kit includes:
- Exhaust clamps
- Exhaust sealing gaskets
- Mounting nuts
- Mounting bolts
Everything required to securely install compatible catalytic converter or dummy catalytic pipe assemblies.
What Does the Mounting Kit Do?
The mounting kit secures the catalytic converter or replacement pipework to the exhaust system while providing a gas-tight seal between connecting flanges.
Its functions include:
- Securing the catalytic converter or replacement pipes.
- Creating leak-free exhaust joints.
- Maintaining correct exhaust alignment.
- Preventing exhaust gas leaks.
- Reducing vibration and movement.
- Ensuring reliable long-term installation.
Replacing the fitting hardware whenever exhaust components are changed helps ensure maximum durability and sealing performance.
Why Replace the Mounting Hardware?
Exhaust mounting hardware operates in one of the harshest
environments on the vehicle, exposed to:
- Extreme exhaust temperatures.
- Road salt and moisture.
- Corrosion.
- Thermal expansion and contraction.
- Rusted or seized fasteners.
- Exhaust vibration.
Attempting to reuse old hardware often results in broken bolts, poor sealing or premature exhaust leaks.
Signs Your Mounting Kit Should Be Replaced
Replacement is recommended if you notice:
- Rusted clamps.
- Corroded nuts or bolts.
- Damaged exhaust gaskets.
- Exhaust leaks.
- Loose catalytic converter connections.
- Broken or seized fixings.
- Exhaust rattles after installation.
Installing new hardware during every exhaust repair helps ensure a secure and reliable fit.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96260KIT
The product you are viewing cross references to these numbers
- 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
Ensure a secure and reliable exhaust installation with this OE Match Complete Exhaust Fitting Kit. Produced to OE-style specifications, this comprehensive fitting kit contains the essential hardware required for correctly installing or refitting compatible Porsche exhaust system components. Manufactured from high-quality, corrosion-resistant materials, the kit is designed to provide dependable clamping force, secure mounting, and long service life, making it ideal for Porsche maintenance, repairs, exhaust replacements, and restoration projects.
Fits:
- 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
Exhaust fitting hardware is exposed to extreme temperatures, moisture, road salt, and corrosion, often making original fixings difficult to reuse safely. Replacing old or seized fasteners, clamps, springs, and associated hardware during exhaust work helps ensure correct sealing, prevents exhaust movement, and simplifies future maintenance. This OE Match Complete Exhaust Fitting Kit provides the correct OE-style replacement hardware needed for a professional-quality installation.
What This Product Does:
- Provides the essential hardware for exhaust installation.
- Secures compatible exhaust components in their correct position.
- Helps maintain leak-free exhaust joints.
- Ensures correct clamping and fastening of the exhaust system.
- Replaces corroded, seized, or damaged exhaust fixings.
- Supports long-term exhaust system reliability.
- Provides OE-style fitment for straightforward installation.
Symptoms Of Wear Or Failure:
- Corroded or seized exhaust nuts and bolts.
- Broken or weakened exhaust mounting hardware.
- Exhaust leaks around joints or flanges.
- Loose or misaligned exhaust components.
- Rattling or vibration from the exhaust system.
- Damaged clamps or retaining hardware.
- Original fixings becoming unusable during exhaust removal.
Why Replacement Matters:
- The exhaust fitting hardware is essential for maintaining the correct alignment, sealing, and structural integrity of the exhaust system. Heat cycles and corrosion gradually weaken fixings, making them susceptible to seizure, breakage, or loss of clamping force. Reusing worn hardware can result in exhaust leaks, excessive movement, vibration, and premature wear of surrounding components.
- Replacing all associated hardware with a complete OE Match fitting kit during exhaust repairs ensures secure installation, reliable sealing, and improved long-term durability. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Complete Exhaust Fitting Kit provides reliable fit, performance, and durability for Porsche maintenance, repairs, exhaust replacements, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHFITTING.996.1.3
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- 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 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Stainless Steel Exhaust Tail Pipe Clamp
Sold each
Secure your Porsche 996 exhaust tail pipe with this OE Match
Stainless Steel Easy-Fit Exhaust Clamp. Designed as a durable replacement for a worn, seized or
corroded original clamp, the stainless steel construction provides excellent
resistance to heat, moisture and road contamination. The easy-fit design also
makes installation straightforward during exhaust maintenance, repair or
restoration.
Fits:
- 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 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Exhaust clamps are exposed to particularly harsh conditions beneath the vehicle, making stainless steel a practical upgrade for improved corrosion resistance and long-term durability.
What Does an Exhaust Tail Pipe Clamp Do?
The exhaust clamp secures the tail pipe and associated exhaust components together, helping maintain correct alignment and a firm connection within the exhaust system.
A correctly fitted clamp helps:
- Secure the tail pipe in position
- Maintain correct exhaust alignment
- Reduce unwanted movement and vibration
- Support a secure exhaust connection
- Prevent rattling caused by loose components
Why Do Exhaust Clamps Fail?
Exhaust clamps are constantly exposed to heat cycles, water, road salt and debris. Over time, this can cause standard steel components to corrode, weaken or seize.
Common causes of failure include:
- Corrosion and rust
- Repeated heating and cooling cycles
- Road salt and moisture
- Seized or damaged fasteners
- Exhaust vibration
- Age and general deterioration
A badly corroded clamp may become difficult to remove and can lose its ability to securely hold the exhaust components together.
When Should an Exhaust Clamp Be Replaced?
Replacement should be considered if:
- Heavy corrosion or rust is visible
- The clamp is cracked or damaged
- Fasteners have seized
- The tail pipe is loose or incorrectly aligned
- Rattling or vibration is coming from the exhaust
- Exhaust components are being removed or replaced
- The existing clamp cannot be reused securely
Replacing old exhaust hardware while the system is dismantled can also make future servicing easier.
Why Upgrade to Stainless Steel?
Stainless steel provides significantly improved resistance to corrosion compared with conventional untreated exhaust hardware, making it particularly suitable for components exposed beneath the vehicle.
Benefits include:
- Excellent corrosion resistance
- Durable stainless steel construction
- Suitable for high-temperature exhaust environments
- Improved resistance to moisture and road salt
- Easy-fit replacement design
- Ideal for exhaust repairs and restoration
Porsche 996 Stainless Steel Exhaust Clamps & Fittings
The Porsche 996 exhaust system operates in one of the harshest environments on the vehicle. Clamps, brackets and fasteners are exposed to high temperatures as well as water, dirt and road salt, making corrosion a common problem as these cars age.
Upgrading worn exhaust hardware with stainless steel components can provide improved corrosion resistance while restoring secure mounting and correct exhaust alignment.
When servicing a Porsche 996 exhaust system, it is worthwhile inspecting tail pipe clamps, mounting brackets, fasteners and associated hardware so deteriorated components can be replaced while the exhaust is accessible.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611110800SS
The product you are viewing cross references to these numbers