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Porsche 997 (911) MK2 2009-2012 997 MKII GT2 RS 2011-13 Exhausts Catalyst / Bypass

Fabspeed Competition Link Pipes. Porsche 997 Turbo (2006-2009)  ›  FSPOR997TCB

Fabspeed Competition Link Pipes. Porsche 997 Turbo (2006-2009) - 99711102772 - FS.POR.997T.CB
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FSPOR997TCB
Product Information
Product Information
Fabspeed Competition Link Pipes.

The Fabspeed Competition Link Pipes are high-flow, catalyst-bypass exhaust pipes developed for the Porsche 911 997 Turbo from 2006–2009 equipped with a compatible Fabspeed exhaust system.

Fits:

  • Porsche 997 MK1 TURBO 2006-09


Designed specifically for competition and closed-course applications, the pipes replace the catalytic-converter section of a compatible Fabspeed exhaust with straight-through stainless-steel tubing.

Removing the catalyst substrate creates a significantly less restrictive exhaust path for the twin-turbocharged flat-six engine, helping reduce post-turbo backpressure, improve exhaust gas evacuation and sharpen throttle response.

The reduction in exhaust restriction also produces a much more aggressive exhaust note, with increased turbocharger sound and greater overall exhaust volume.

The Competition Link Pipes are manufactured from 14–16 gauge CNC mandrel-bent T304L stainless steel, providing high-temperature durability, corrosion resistance and a smooth internal exhaust path.

What This Product Does:
The Competition Link Pipes replace the catalytic-converter section of the compatible exhaust system with straight-through tubing.

They are designed to:

  • Remove catalyst-related exhaust restriction.
  • Increase exhaust gas flow.
  • Reduce post-turbo backpressure.
  • Improve throttle response.
  • Support quicker turbocharger response.
  • Provide greater exhaust-flow capacity.
  • Increase turbocharger sound.
  • Produce a louder and more aggressive exhaust note.
  • Reduce the mass associated with catalytic-converter assemblies.
  • Complement compatible Fabspeed performance exhaust systems.
  • Provide a competition-focused exhaust configuration.

Symptoms Of Wear Or Failure:
One reason for replacing an existing catalytic-converter section may be internal catalyst deterioration.

Possible symptoms include:

  • Loss of engine performance.
  • Reduced high-RPM power.
  • Sluggish turbo response.
  • Engine feeling restricted under boost.
  • Excessive exhaust backpressure.
  • Metallic rattling inside a catalytic converter.
  • Check Engine Light.
  • Catalyst-efficiency fault codes.
  • Excessive exhaust temperature.
  • Unusual exhaust smell.
  • Internal catalyst substrate breaking apart.
  • Melted or collapsed catalyst material.

Catalyst failure should always be diagnosed properly because it may be caused by an underlying engine fault.

Why Replacement Matters:
Replacing damaged competition link pipes helps restore:

  • Proper exhaust sealing.
  • Correct exhaust alignment.
  • Maximum intended gas flow.
  • Safe routing of hot exhaust gases.
  • Structural integrity.
  • Reliable track performance.

Where the original or sport catalytic converters have become restricted or mechanically damaged, moving to a bypass configuration for a permitted competition application can also remove that restriction completely.

NOTE: In the United Kingdom, sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001. They are not MOT compliant and cannot be used on public roads. These components are intended solely for race and track use.


For vehicles manufactured before 1st March 2001, a non-type approved sports catalytic converter may be fitted, provided it offers comparable performance to the original and the vehicle continues to meet the applicable emissions standards for its age. The vehicle must still pass an MOT test.

If you are located outside the UK, please check your local laws and regulations to ensure compliance.



Related reference numbers
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FSPOR997TCB
99711102772

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Fabspeed HJS German Sport Catalytic Converters. Porsche 997.2 GT2 RS (2011) - 99711301080, 99711300980 - FS.POR.9972GT2RS.SC
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Fabspeed HJS German Sport Catalytic Converters. Porsche 997.2 GT2 RS (2011)
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Fabspeed HJS German Sport Catalytic Converters.

The Fabspeed HJS German Sport Catalytic Converters are high-flow replacement catalysts designed specifically for the 2011 Porsche 997.2 GT2 RS.

Fits:

  • Porsche 997 MKII GT2 RS 2011-13


Using premium 200-cell HJS HD Sport catalytic converters, the system is engineered to reduce exhaust restriction compared with the original catalysts while continuing to provide catalytic emissions treatment.

The catalysts are integrated into high-quality 14–16 gauge CNC mandrel-bent T304 stainless-steel pipework, providing excellent resistance to exhaust heat, corrosion and repeated thermal cycling.

Designed as a direct replacement for the factory catalytic converters, this upgrade is intended to improve exhaust flow, throttle response and exhaust character without converting the vehicle to a catalyst-delete configuration.

What This Product Does:
Catalytic converters form part of the vehicle's emissions-control and exhaust system.

Their primary purpose is to chemically convert harmful exhaust pollutants into less harmful gases before they leave the tailpipes. However, exhaust gases must also pass through the catalyst substrate, meaning its design can influence exhaust restriction.

The Fabspeed HJS Sport Catalytic Converters are designed to:

  • Reduce exhaust restriction compared with more restrictive catalysts
  • Improve exhaust gas flow
  • Support improved throttle response
  • Allow the turbochargers to evacuate exhaust gases more efficiently
  • Provide catalytic emissions treatment
  • Produce a stronger performance exhaust note
  • Maintain a catted exhaust configuration
  • Replace ageing, damaged or restricted original catalytic converters
  • Provide durable stainless-steel construction

Fabspeed states that the 200-cell HJS EMITEC catalysts can flow up to approximately 90–93% of a straight pipe in many applications, while retaining catalytic functionality.

Symptoms Of Wear Or Failure:
Catalytic converters operate at extremely high temperatures and can deteriorate through age, contamination, physical damage or repeated thermal stress.

Common symptoms of a failing or restricted catalytic converter include:

  • Check Engine Light relating to catalyst efficiency
  • Reduced engine performance
  • Sluggish throttle response
  • Increased turbo lag
  • Loss of power at higher engine speeds
  • Excessive exhaust backpressure
  • Metallic rattling from inside the catalyst
  • Broken or loose catalyst substrate
  • Sulphur or rotten-egg-like exhaust smell
  • Unusually high exhaust temperatures
  • Increased fuel consumption
  • Failed emissions testing
  • Irregular or restricted exhaust flow
  • Excessive heat around the catalytic converter area
  • Visible damage or cracking around the catalyst housing
  • Black soot around leaking exhaust connections

A damaged catalyst substrate can break apart internally and partially obstruct the exhaust path, significantly increasing restriction.

Why Replacement Matters:
A deteriorated catalytic converter can affect both emissions performance and engine operation.

If the internal catalyst substrate begins to collapse or become blocked, exhaust gases cannot leave the engine as efficiently. On a turbocharged engine such as the GT2 RS, this increased post-turbo restriction can negatively affect throttle response and turbocharger performance.

Excessive restriction can also increase exhaust temperature and thermal stress within the system.

Replacing damaged or restricted catalytic converters helps restore:

  • Proper exhaust gas flow
  • Reduced exhaust backpressure
  • Consistent turbocharger response
  • Correct catalytic emissions treatment
  • Normal throttle response
  • A secure and leak-free exhaust system

Replacement is also important when the catalyst substrate has physically deteriorated, as loose material can continue to break apart and further obstruct the exhaust.



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

FSPOR9972GT2RSSC
99711301080
99711300980

The product you are viewing cross references to these numbers