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Exhaust Fitting Kits

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DISPLAYING 1 to 2 (of 2 products)
EXHFITTING.993.1
Product Information
Product Information

Mounting Kit for Rear Exhaust. With 2 seal rings.

oematch

Fits:
Porsche 993 C2 / C4 - 1994 to 1998
Porsche 993 C2S / C4S / RS - 1994 to 1997

Kit includes:
2 x Retaining strap
2 x Retaining strap bolts
4 x Sealing ring, Ø52x64x26mm, stainless steel
4 x Clamp with bolts, M19202-02, stainless steel



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Related, superseded, cross reference or alternative numbers for comparison.

EXHFITTING.993.1
99311111907
92811142700
92811124605
92811124606
92811124607
90007425202
99902512509
99908405202
90006736201

The product you are viewing cross references to these numbers
93301KIT
Product Information
Product Information
Mounting Kit For Rear Exhaust, With 2 Rings.
The OE Match Mounting Kit for Rear Exhaust (With 2 Rings) is a comprehensive installation kit designed to provide all the essential hardware and two exhaust sealing rings required when fitting or replacing the rear exhaust silencer on compatible Porsche models. Manufactured to OE specifications for fit, strength and durability, this complete kit ensures secure mounting, correct alignment and reliable, leak-free exhaust system performance.

Fits:
  • Porsche 993 (911) C2 1994-97
  • Porsche 993 (911) C4 1994-97
  • Porsche 993 (911) RS 1994-97
  • Porsche 993 (911) C2S 1994-97
  • Porsche 993 (911) C4S 1994-97  

Kit Includes:
2x Restraing strap
2x Sealing ring, Ø52x64x26mm, stainless steel
4x Clamp, M19202-02, stainless steel
2x Bolt, M8x1.25x50mm
4x Bolt, M8x1.25x65mm
4x Lock Nut, M8x1.25mm
8x Washer, Ø16.8x8.5x3mm

The kit includes premium-quality mounting hardware, such as fasteners, clamps and fixings where applicable, together with two exhaust sealing rings to create effective gas-tight joints between exhaust components. Manufactured from corrosion-resistant, heat-resistant materials, the components are engineered to withstand the demanding temperatures, vibration and environmental conditions experienced by the exhaust system.

What This Product Does:
  • Provides the essential hardware required to install the rear exhaust assembly.
  • Includes two exhaust sealing rings for leak-free exhaust joints.
  • Secures the rear silencer safely and correctly.
  • Maintains proper exhaust alignment.
  • Helps prevent exhaust gas leaks.
  • Replaces worn, corroded or seized mounting hardware.
  • Reduces exhaust vibration and unwanted movement.
  • Supports professional-quality exhaust installation and repair.

Symptoms Of Wear Or Failure:

  • Exhaust gas leaks.
  • Blowing noises from exhaust joints.
  • Loose or misaligned rear exhaust components.
  • Rattling or vibrating exhaust system.
  • Corroded or seized nuts, bolts or clamps.
  • Damaged or compressed sealing rings.
  • Increased exhaust noise.
  • Excessive movement of the rear silencer.
  • Difficulty securing replacement exhaust components.
  • Visible corrosion or deterioration of mounting hardware.

Why Replacement Matters:
  • Exhaust mounting hardware and sealing rings are exposed to continuous heat cycles, moisture, road salt and vibration. Over time, fasteners can corrode or lose their clamping force, while sealing rings compress, deteriorate or become damaged, allowing exhaust gases to escape.
  • Reusing old hardware or worn sealing rings during exhaust replacement can result in poor sealing, unwanted vibration and premature wear of new exhaust components. Exhaust leaks may increase noise levels, reduce system efficiency and require additional repairs.
  • Replacing the complete mounting hardware and sealing rings during exhaust installation ensures secure fitment, proper alignment and reliable sealing from the outset. The OE Match Mounting Kit provides factory-style fitment, durable corrosion-resistant components and high-quality sealing rings, helping maintain the performance, refinement and reliability expected from your Porsche.

DISPLAYING 1 to 2 (of 2 products)
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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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