Please wait… 
Please wait while we process your order,
do not press the back button… 
Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

Refine by Car Type
Filter by brand
DISPLAYING 17 to 26 (of 26 products)
1 2
Special Order item
99111147701
Product Information
Product Information
Exhaust retaining bar, with: Hexagon bolt and Hexagon nut.

porsche

Fits:
Porsche 991.1 Carrera 3.4L / 3.8L 2017-19
incl. cars with sport exhaust system

Click 'Zoom in' for large parts diagram.
Diagram ref no 23

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99111147701
99111147701
99111147700

The product you are viewing cross references to these numbers
Special Order item
99111148101
Product Information
Product Information
Exhaust retaining strap. Porsche 991.1 Carrera  2 Per car (price is each) 

porsche

Fits:
Porsche 991.1 Carrera 3.4L / 3.8L 2017-19
incl. cars with sport exhaust system

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99111148101
99111148101

The product you are viewing cross references to these numbers
Best Price
99711152000/1
Product Information
Product Information
Exhaust sleeve catalytic converter to silencer.
Connecting sleeve from cat to rear silencer.
Price is for each sleeve.

oematch

Fits:
Porsche 996 1998-05 (not Turbo and GT2)

Porsche 997 2005>> (not Turbo and GT2)

Porsche 991 Carrera C2 3.4L (350Bhp)
Porsche 991 Carrera C2S 3.8L (400Bhp)
Porsche 991 Carrera C4 3.4L (350Bhp)
Porsche 991 Carrera C4S 3.8L (400Bhp)
Fits cars with and without sport exhaust


Click 'Zoom in' for large parts diagram.
Diagram ref no 13

This high-quality exhaust connecting sleeve joins the catalytic converter to the rear silencer on Porsche 996 and 997 models, offering a superior solution compared to the original Porsche part and many aftermarket alternatives.

Manufactured to tighter tolerances and improved material quality, this upgraded exhaust sleeve provides a more precise fit, improved sealing, and enhanced durability over time. Unlike the original OE sleeve – which can be prone to corrosion and fitment issues as the vehicle ages – this version is designed to deliver long-term reliability and ease of installation.

Crucially, this sleeve is engineered to fit both Porsche 996 and Porsche 997 applications, making it a more versatile and cost-effective option than other aftermarket versions that are often model-specific or require modification.

Direct replacement for Porsche part number 99711152000

Fits Porsche 996 and Porsche 997 models

Improved fit and sealing versus the original OE sleeve

Higher quality construction than typical aftermarket alternatives

Reduces the risk of exhaust leaks and future corrosion

Ideal for exhaust repairs, restorations, or upgrades

Price is per individual sleeve

Whether you are refreshing a tired exhaust system or carrying out a full overhaul, this exhaust sleeve offers a better-than-OEM solution trusted by Porsche specialists and enthusiasts alike.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99711152000
99711152000
99611122002

The product you are viewing cross references to these numbers
Special Order item
99711152000
Product Information
Product Information
Exhaust sleeve catalytic converter to silencer.
Price is for each sleeve.

porsche

Original Porsche connecting sleeve from cat to rear silencer.

Fits:
Porsche 997 2005>> (not Turbo and GT2)
    Fits cars with and without sport exhaust

Porsche 991 Carrera C2 3.4L (350Bhp)
Porsche 991 Carrera C2S 3.8L (400Bhp)
Porsche 991 Carrera C4 3.4L (350Bhp)
Porsche 991 Carrera C4S 3.8L (400Bhp)

Click 'Zoom in' for large parts diagram.
Diagram ref no 13



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99711152000
99711152000

The product you are viewing cross references to these numbers
99711152000/2
Product Information
Product Information
Titanium (grade 5) Exhaust sleeve catalytic converter to silencer.
Connecting sleeve from cat to rear silencer. Price is for each sleeve.

rohler

Fits:
Porsche 996 1998-05 (not Turbo and GT2)
Porsche 997 2005>> (not Turbo and GT2)
Porsche 991 Carrera C2 3.4L (350Bhp)
Porsche 991 Carrera C2S 3.8L (400Bhp)
Porsche 991 Carrera C4 3.4L (350Bhp)
Porsche 991 Carrera C4S 3.8L (400Bhp)

Fits cars with and without sport exhaust
Grade 5 titanium is resistant to salt water and variety of corrosive media temperatures below 300°C

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

Titanium Exhaust Sleeve – Catalytic Converter to Rear Silencer Grade 5 Titanium (Ti-6Al-4V) Porsche 996 / 997 / 991 

Replaces Porsche Part Number: 99711152000 

This Grade 5 titanium exhaust sleeve connects the catalytic converter to the rear silencer and represents a significant upgrade over the original Porsche steel sleeve and conventional aftermarket alternatives. Manufactured from aerospace-grade Grade 5 titanium (Ti-6Al-4V), this Rohler exhaust sleeve delivers exceptional strength, corrosion resistance, and weight reduction, making it the ideal long-term solution for performance-focused and enthusiast-owned Porsches. Unlike the original OE clamp, which is susceptible to corrosion over time, this titanium version is highly resistant to salt water and corrosive environments at temperatures below 300°C, ensuring outstanding longevity. 

Precision-engineered for accurate fitment across multiple Porsche generations, this upgraded sleeve fits 996, 997, and select 991 Carrera models, offering broader compatibility than many aftermarket options while retaining true bolt-on installation. 

Grade 5 titanium (Ti-6Al-4V) construction 

Stronger, lighter, and more corrosion-resistant than OEM steel sleeves 

Superior longevity compared to original and aftermarket versions 

Direct replacement for Porsche 99711152000 

Precision fit with excellent sealing Suitable for standard and factory sport exhaust systems 

Ideal for performance, restoration, or preventative maintenance   



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99711152000
99711152000

The product you are viewing cross references to these numbers
99711124030T
Product Information
Product Information
Exhaust tail pipe clamp in Titanium. Sold as each. 2 required per car.

rohler

Fits:
Porsche 997.2 (cars without sport exhaust system A176)

Porsche 991.1 (cars with and without sport exhaust system A176)
Porsche 991.1 Turbo

Porsche 991.2 (cars without sport exhaust system A176)
Porsche 991.2 Turbo


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99711124030T
99711124030

The product you are viewing cross references to these numbers
Special Order item
99711124030
Product Information
Product Information
Exhaust tail pipe clamp. Sold as each. 2 required per car.

porsche

Fits:
Porsche 997.2 (cars without sport exhaust system A176)

Porsche 991.1 (cars with and without sport exhaust system A176)
Porsche 991.1 Turbo

Porsche 991.2 (cars without sport exhaust system A176)
Porsche 991.2 Turbo


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99711124030
99711124030

The product you are viewing cross references to these numbers
Best Price
99111148700/1
Product Information
Product Information
Exhaust vibration dampener for silencer bracket.
Sold each, 4 pcs required per exhaust box bracket, fits on top and below Porsche ref: 99111147701.

Fits:
Porsche 991.1 C2 / C2S 2012 - 2016
Porsche 991.1 C4 / C4S 2012 - 2016

Diagram Ref no 23



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99111148700
99111148700

The product you are viewing cross references to these numbers
Special Order item
99611122900
Product Information
Product Information
Silencer bracket Damper. Porsche 996 / 996 GT3
porsche

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)


Click 'Zoom in' for large parts diagram.
Diagram ref no 34

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99611122900
99611122900

The product you are viewing cross references to these numbers
Special Order item
99111148800
Product Information
Product Information
Vacuum hose support bracket. 

Fits:
In conjunction with PR 176 (sports exhaust system)
Porsche 991-1 Carrera 2012-16

Diagram ref. 12.  

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99111148800
99111148800

The product you are viewing cross references to these numbers
DISPLAYING 17 to 26 (of 26 products)
1 2
Also found on these pages
About Brackets / Clamps / Straps

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.

You may also like
Popular Models