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Porsche > Boxster 986/987/981 (1997-2016) > Boxster S 986 3.2L 1999-02 > Exhausts >

Brackets / Clamps / Straps

Brackets / Clamps / Straps

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DISPLAYING 1 to 16 (of 23 products)
1 2
Exhaust Cat Heat Sheild Set. Porsche Boxster 986 - 99611342200, 99611342100, 99611342100, 99611342200, 99950743009, 90015100703, 99950741308
1
Exhaust Cat Heat Sheild Set. Porsche Boxster 986
HEATKIT986
Product Information
Product Information
Exhaust Cat Heat protection plate kit.

porsche

Fits:
Porsche Boxster 986 cat.

Click 'Zoom in' for large parts diagram.
Diagram Ref No 17,18, 25, 26 and 27.

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Related, superseded, cross reference or alternative numbers for comparison.

HEATKIT986
99611342200
99611342100
99611342100
99611342200
99950743009
90015100703
99950741308

The product you are viewing cross references to these numbers
Exhaust Fitting Kit Porsche. Boxster 986 - 99611110755, 99611311300, 99611111001, 99611120900
2
Exhaust Fitting Kit Porsche. Boxster 986
EXHFITTING.986.1
Product Information
Product Information
Exhaust Fitting Kit

Fits:
Porsche 986 Boxster 2.7L / 3.2L 1999-04

Kit Includes:
2 x Header Gaskets (Diagram Ref 3)
2 x Header to Cat Gaskets (Diagram Ref 20)
2 x Cats to Muffler Clamps (Diagram Ref 15)
2 x Muffler to Tail Pipe Clamps (Diagram Ref 10)


*Click on the image to see a large parts diagram.

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Related, superseded, cross reference or alternative numbers for comparison.

EXHFITTING.986.1
99611110755
99611311300
99611111001
99611120900

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Exhaust cat heat shield. Porsche Boxster 986 - 99611342200, 99611342100
3
Exhaust cat heat shield. Porsche Boxster 986
Special Order item
99611342
Product Information
Product Information
Exhaust cat heat shield. 

porsche

Another popular item which normally rusts and starts to rattle. Heat protection plate for Porsche Boxster 986 cat.

Price is for each heat shield

Click 'Zoom in' for large parts diagram.
Diagram Ref No 19 and 20


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99611342
99611342200
99611342100

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Exhaust head bolt repair kit for Porsche Boxster / 996 / 997 - SR067
2
Exhaust head bolt repair kit for Porsche Boxster / 996 / 997
Special Offer
SR067
Product Information
Product Information
Exhaust bolt repair kit for Boxster / 996 / 997 Carrera & Cayman Gen1 1997- 2009 (Not GT3, GT2 or TT engines)

stomski

With more and more broken exhaust bolts reported on the water-cooled engines, the headache of repairing a broken bolt is becoming epidemic. 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 SR067, 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 SR067 plate is locked in place (by threading a Thumb Screw over a broken bolt or by using a supplied bolt threaded through the SR067 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.

Now also includes our SR065D drill guide.
Exhaust Muffler Fitting kit for Porsche Boxster 986 2.5L - 00004420011
1
Exhaust Muffler Fitting kit for Porsche Boxster 986 2.5L
Special Order item
00004420011
Product Information
Product Information
Exhaust Muffler Fitting kit for Porsche Boxster 986 2.5L.

This fitting kit should be used when fitting a sports exhaust which normally only fit Boxster 986 2.7L or 3.2L.

The will convert the exhaust box to fit on a 2.5L Boxster 986.

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00004420011
00004420011

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Exhaust Muffler Lower Mounting Bracket. Porsche 986 Boxster - 99611124201
5
Exhaust Muffler Lower Mounting Bracket. Porsche 986 Boxster
Special Order item
99611124201
Product Information
Product Information
Exhaust Muffler Lower Mounting Bracket.


porsche

Fits:
Porsche 986 Boxster S 3.2L 2000-02

Click 'Zoom in' for large parts diagram.
Diagram Ref No 6



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99611124201
99611124201

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Exhaust Muffler Support. Porsche 986 Boxster 2000>> - 99611124100
3
Exhaust Muffler Support. Porsche 986 Boxster 2000>>
Special Order item
99611124100
Product Information
Product Information
Exhaust Muffler Support.

porsche

Fits:
Porsche 986 Boxster 2000>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

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99611124100
99611124100

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Exhaust rear muffler retainer plate. Porsche 986 Boxster - 99611331101, 1625001400
4
Exhaust rear muffler retainer plate. Porsche 986 Boxster
Special Order item
99611331101
Product Information
Product Information
Exhaust rear muffler retainer plate. 
you will require the nuts code 90038000501

porsche

Fits:
Porsche 986 Boxster 1998-04

Click 'Zoom in' for large parts diagram.
Diagram ref no 21

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99611331101
99611331101
1625001400

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Exhaust rear muffler retainer plate. Porsche 986 Boxster - 99611331101 - 1625001400
3
Exhaust rear muffler retainer plate. Porsche 986 Boxster
Special Offer
99611331101/1
Product Information
Product Information
Exhaust rear muffler retainer plate. 
you will require the nuts code 90038000501

oematch

Fits:
Porsche 986 Boxster 1998-04

Click 'Zoom in' for large parts diagram.
Diagram ref no 21

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99611331101
99611331101

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Exhaust silencer bracket. Porsche 986 Boxster 2.7ltr / Boxster S tiptronic - 99611122602
6
Exhaust silencer bracket. Porsche 986 Boxster 2.7ltr / Boxster S tiptronic
Special Order item
99611122602
Product Information
Product Information
Exhaust silencer bracket. 

porsche

Fits:
Porsche 986 Boxster S 3.2ltr Tiptronic
Porsche 986 2.7ltr - Manual and Tiptronic


Click 'Zoom in' for large parts diagram.
Diagram ref no 5



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99611122602
99611122602

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Exhaust sleeve catalytic converter to U-Bend. Porsche Boxster 986 - 99611111001, 99611111000 - URO-011268
2
Exhaust sleeve catalytic converter to U-Bend. Porsche Boxster 986
Special Order item
99611111001
Product Information
Product Information
Exhaust sleeve catalytic converter to U-Bend
Genuine Porsche exhaust clamp - also called a clamping sleeve - It is used where the catalytic converter connects to the next section of exhaust (U-bend/silencer pipe) on Porsche 986 Boxster models.
Sold as: Single clamp (two may be required per complete joint).

Fits:
Porsche 986 Boxster 1997 - 2004

Diagram ref no 15

The exhaust clamp helps secure and seal the exhaust connection between the catalytic converter and adjoining exhaust pipe sections. Under normal operation, exhaust components heat up, cool down, and experience vibration; this clamp maintains a tight mechanical joint, preventing exhaust leaks, excessive movement, and noise. Genuine Porsche clamps are engineered with durable materials that withstand heat, corrosion, and vibration as intended by the factory design.

Function:
•  Secures exhaust junctions: Holds exhaust piping tightly together
•  Prevents exhaust leaks: Maintains a sealed joint at critical interfaces
•  Resists corrosive conditions: Designed for high-temperature exposure
•  Ensures proper exhaust alignment: Reduces noise, rattles, and stress on mounts

As part of the exhaust system hardware, proper clamp integrity helps the entire exhaust assembly function smoothly and reliably across varying conditions.

Exhaust clamps are exposed to extreme temperatures, road salts, and moisture - conditions that accelerate corrosion and fatigue. Over time, original clamps can weaken, rust, or lose clamping force, leading to:
•  Exhaust leaks Increased noise or vibration
•  Poor exhaust alignment
•  Potential damage to adjacent components

Using a Genuine Porsche clamp ensures the joint is restored to factory-spec tightness, maintaining proper exhaust pressure sealing and alignment as originally designed.

When to replace. Replace the exhaust clamp when:
•  You are servicing or refitting the exhaust system
•  The original clamp shows rust, deformation, or breaks
•  You hear exhaust leaks or unusual noise at the catalytic converter junction
•  The clamp no longer holds the pipes firmly in place

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

99611111001
99611111001
99611111000

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Exhaust sleeve catalytic converter to u-bend. Porsche Boxster 986 - 99611111001, 99611111000 - V10-1836, 1621400500
3
Exhaust sleeve catalytic converter to u-bend. Porsche Boxster 986
Special Offer
99611111001/1
Product Information
Product Information
Exhaust sleeve catalytic converter to u-bend.
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



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99611111001
99611111001
99611111000

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Exhaust sleeve in titanium catalytic converter to u-bend. Porsche Boxster 986 - 99611111001, 9611111000, 1621400500 - URO-011268
3
Exhaust sleeve in titanium catalytic converter to u-bend. Porsche Boxster 986
Special Offer
99611111001/2
Product Information
Product Information
Titanium (grade 5) exhaust sleeve catalytic converter to u-bend. Connecting sleeve from cat to u-bend rear silencer.

rohler

Fits:
Porsche 986 Boxster 1997-04

Grade 5 titanium is resistant to salt water and variety of corrosive media temperatures below 300°C

Price is for each sleeve.

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

99611111001
99611111001
9611111000
1621400500

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Exhaust U Tube - Porsche Boxster 986 2.7L /3.2L 2000>> - 99611131400
3
Exhaust U Tube - Porsche Boxster 986 2.7L /3.2L 2000>>
Special Order item
99611131400
Product Information
Product Information
Exhaust U Tube - left or Right

porsche

Fits:
Porsche Boxster 986 2.7L & 3.2L 2000>>

Click picture for large parts diagram.
Diagram Ref no 12

Price is for each.

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99611131400
99611131400

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Exhaust U tube clamp. Porsche 986 Boxster - 99611120900, 1621401500
5
Exhaust U tube clamp. Porsche 986 Boxster
Special Order item
99611120900
Product Information
Product Information
Exhaust U Tube - Clamp.

porsche

Fits:
Porsche 986 Boxster

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

Price is for each.

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

99611120900
99611120900
1621401500

The product you are viewing cross references to these numbers
Exhaust U tube clamp. Porsche 986 Boxster - 99611120900 - 1621401500
5
Exhaust U tube clamp. Porsche 986 Boxster
Special Offer
99611120900/1
Product Information
Product Information
Exhaust U-tube clamp (52mm)
OE Match exhaust U-tube clamp used to secure the exhaust connecting pipe at the U-bend (U-tube) on Porsche 986 Boxster applications.
Sold each, 2 required per vehicle.

Fits:
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2004

Diagram ref no 13

It locks the exhaust joint together at the connecting pipe/U-bend interface, maintaining alignment and helping prevent exhaust leaks, vibration, and movement under heat expansion. A fresh clamp is especially important after exhaust removal, where old clamps often seize or deform and can’t be reused reliably.

Function:
• Provides secure clamping force at the U-tube/connecting pipe joint
•  Helps maintain a tight, leak-resistant seal under heat cycling
•  Supports proper exhaust alignment to reduce rattles and stress on joints

Exhaust clamps live in a harsh environment and commonly rust, seize, and become impossible to loosen without damage. Replacing the clamp during exhaust work helps ensure the joint reseals properly, avoids leaks and rattles, and prevents wasted time fighting corroded hardware.

When to replace:
•  When removing/refitting the U-bend or connecting pipe
•  If the clamp is corroded, seized, stretched, or deformed
•  If you have exhaust blowing/leak noise at the joint
•  If bolts/threads are damaged or won’t torque correctly

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

99611120900
99611120900

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 23 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.

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