Brackets / Clamps / Straps

Fits:
Porsche 996 C2 / C4 3.4L 1998-2001 (96.01 / 96.02 / 96.04)
Porsche 996 GT3 1999-2005 (96.76 / 96.79)
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Diagram Ref no 23 (LEFT) or 28 (RIGHT).
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611122
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 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04

Fits:
Porsche 996 C2 / C4 / C4S 3.6L 2001-05 (M96.03)
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Diagram Ref no 23 (LEFT) or 28 (RIGHT)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611123
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Fits:
Porsche 996 C2 / C4 >>2001
Diagram Ref no 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611312352
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
4 pcs per silencer. Sold as each.

Fits:
Porsche 996 Carrera 1999-2004
Porsche 997 Carrera 2005-2008
Porsche 997.2 Carrera 3.6L / 3.8L 2009>>
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Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99711122930
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
- 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
4 pcs required per exhaust box bracket 
Fits:
Porsche 996 C2 / C4
Porsche 997 C2 / C4
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Diagram Ref no 34
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99711122930
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
- 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
100ml

After years of being asked to come up with a solution from our dealers, race-teams and end-users, we have now solved a perennial problem for many conscientious owners; namely, how to refresh their stainless exhaust system to an 'as-new' condition when detailing the car. After several months of testing in all markets and weather conditions, we will soon be releasing a tailored metal polish that will render any stainless steel exhaust system or metal component ready for concours or show duty, with the minimum of effort. Perfect not only for keeping your Milltek system in tip-top condition, but also any other polished or chromed parts on your car (or bike!) too.
The polish has been developed by our R&D engineers in association with leading car care experts, Dodo Juice. The result is a high shine, mild-abrasive polish that can be used on all types of metal, including chrome. Sophisticated diminishing abrasives remove contaminants initially, then refine for a mirror finish while the chemical cleaning action helps dissolve fuel, oil and soot deposits. The final finishing touch is down to the use of an active sealing ingredient helps metal resist future tarnishing. The polish has been formulated to work well with any medium resistance, short-pile cloth and is an absolute doddle to apply or remove, making the art of restoring any metal surface the work of mere minutes.
100ml bottle with a FREE microfibre cloth, which should be more than enough for 20 intensive back boxes and tail trim cleans.
- 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
Fits: 99611196260S, 996PO96260S and 996PO96270S.

Fits:
Porsche 996 Carrera 3.4L-3.6L 1998-05
Porsche 996 GT3 3.6 2004-05
Porsche 996 GT3 3.6 1999-01
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
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 GT3 2000-05
Porsche 997 GT3 2007-11
Porsche 991 GT3 2013-17
Porsche 991 GT3 RS / R 2014-17
Porsche 991.2 GT3 / RS 2017-20 (not for Speedster)
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Diagram ref no 34
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611122900
The product you are viewing cross references to these numbers
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MKII GT3 2010-11
- 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 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
Fits:
Porsche 996 C2 / C4 1998-04
Porsche 996 GT3 2000-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 35
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611123000
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 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 C2 / C4 1998-01
Porsche 996 GT3 2000-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 35
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611123000
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 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04

Fits:
Porsche 996 C2 / C4 1998-04
Porsche 996 GT3 2000-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 36
Price is for each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611123100
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
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 C2 / C4 1998-01
Porsche 996 GT3 2000-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 36
Price is for each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611123100
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 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 C2 / C4 / C4S 1998-05
Porsche 997 Carrera 2009-08 (Sports exhaust system)
Diagram Ref no. 10
Choosing a titanium version of this bracket offers several key advantages. Titanium is far more resistant to rust, corrosion, and fatigue than mild steel or standard alloys, which means it will last longer even under the intense heat and stress of the exhaust system. It’s also much lighter, helping reduce unsprung weight and contributing to improved exhaust response and overall vehicle balance. Finally, the titanium bracket provides the same precise fit as the original, keeping the muffler securely aligned and supported to prevent rattles, misalignment, or damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611322350T
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
- 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
Fits:
Porsche 996 C2 / C4 08/2001 - 2004
Porsche 997 C2 / C4 2005 - 2008
Diagram Ref no 9
Mounted behind the rear bumper under the exhaust, it securely supports the catalytic converter, helping to maintain proper exhaust alignment and absorb vibration without cracking or deforming. If you’re after longevity, performance, or reducing corrosion, this titanium bracket is an excellent upgrade.
You may need to replace the bracket if it shows signs of rust, cracks, bending, or deformation. Other warning signs include rattling or vibration from the exhaust or catalytic converter during acceleration or over bumps, visible misalignment of the exhaust system, or a catalytic converter that hangs too low. Worn hangers or mounts caused by added stress from a weak bracket are also clear indicators. If a damaged bracket is not replaced, the exhaust can sag, shift, or make contact with the underbody, creating damage and unwanted noise. The added strain on other mounts and components can accelerate wear, lead to fractures, or cause heat and vibration damage to nearby parts. Left unchecked, this can result in exhaust leaks, failed emissions tests, or costly repairs to the catalytic converter and exhaust system. You wouldn't do this to your Porsche, would you?
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611312355T
The product you are viewing cross references to these numbers
- 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
Exhaust Mounting Brackets, Straps & Clamps – Secure, Silent & Strong
A Porsche exhaust system relies on more than just pipes and silencers — it’s held together by a network of mounting brackets, straps, and clamps that keep everything securely in place. These essential components absorb vibration, maintain correct alignment, and prevent stress or damage to exhaust pipes and mufflers.
At Design911, we stock a full range of exhaust mounting hardware, including brackets, hangers, straps, clamps, gaskets, and fasteners, all designed for long-lasting durability and a perfect fit. Built from high-strength stainless steel and corrosion-resistant materials, these components ensure your exhaust system remains properly supported and free from unwanted noise or movement.
Whether you’re performing a full exhaust replacement or a minor repair, replacing worn or rusted mounting hardware restores proper fitment and protects your Porsche’s exhaust from damage caused by vibration or misalignment.
What Do Exhaust Mounting Brackets, Straps & Clamps Do?
These small but vital parts provide the backbone for your exhaust system’s stability and integrity.
Core Functions:
- Secure
the exhaust system to the vehicle chassis.
- Maintain
correct alignment to prevent strain on joints and flanges.
- Absorb
engine vibration to reduce stress and cracking.
- Ensure
leak-free connections between pipes and silencers.
- Prevent rattling and unwanted noise during acceleration and cornering.
Without properly functioning brackets and clamps, your exhaust can sag, vibrate, or even detach — risking costly damage and performance loss.
Why Do Exhaust Mounts and Clamps Fail?
Constant heat, vibration, and exposure to the elements make exhaust mounting components prone to wear over time.
Common Causes of Failure Include:
- Corrosion
or rust from road salt and moisture.
- Metal
fatigue caused by heat cycling and vibration.
- Cracked
or stretched straps from repeated stress.
- Loose
or broken clamps leading to exhaust leaks.
- Rubber mount deterioration resulting in noise or exhaust movement.
Failure of these components can lead to exhaust misalignment, rattling, leaks, or premature pipe damage — issues that worsen quickly if ignored.
Why Replace Components?
Replacing worn or damaged exhaust mounting hardware ensures your Porsche’s exhaust system remains stable, quiet, and free-flowing.
Key Benefits:
- Restores exhaust alignment and fitment.
- Prevents damage to mufflers, pipes, and joints.
- Eliminates rattling, vibration, and leaks.
- Durable stainless steel and heat-resistant construction.
- Direct-fit
compatibility for all Porsche models, classic and modern.
- Ideal for maintenance, restoration, or performance upgrades.
A secure exhaust system not only improves comfort and performance but also extends the life of other components — ensuring your Porsche remains refined and reliable.
Highlights:
- High-quality exhaust brackets, clamps, and mounting straps.
- Precision-engineered for Porsche fitment and durability.
- Prevents vibration, movement, and exhaust leaks.
- Made from corrosion-resistant stainless steel.
- Perfect for restorations or exhaust maintenance.
- Ensures long-term stability and quiet operation.