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Design911 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.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png +443456003478 https://www.design911.co.uk Facebook Instagram
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96260KIT
Product Information
Product Information

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, 996PO96270S

Whether 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
99711152000
99611122002
99951108700

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