Catalyst / Bypass

Fabspeed Cat By-Pass Pipes.
The Fabspeed Cat Bypass Pipes are high-performance straight-through exhaust pipes developed for the Porsche 997.2 Turbo and Turbo S from 2010–2012.

Fits:

Designed specifically for track and off-road applications, these pipes replace the restrictive factory catalytic converters with a freer-flowing exhaust path. Removing the catalyst section reduces exhaust restriction after the turbochargers, allowing exhaust gases to exit more freely while producing a significantly louder and more aggressive exhaust note.  

What This Product Does:

The factory exhaust system uses catalytic converters to treat exhaust gases before they leave the vehicle.

Although catalytic converters perform an important emissions-control function, they also create some resistance to exhaust flow.

The Fabspeed Cat Bypass Pipes remove this catalyst section entirely and replace it with straight-through stainless-steel tubing.

Their purpose is to provide:

• Increased exhaust flow
• Reduced exhaust restriction
• Improved throttle response
• Increased performance potential
• Reduced exhaust-system weight
• Increased exhaust volume
• More noticeable turbocharger spool
• More aggressive flat-six exhaust sound

These characteristics make the pipes primarily suited to track and competition vehicles where maximum exhaust flow is prioritised over road-going emissions compliance.

When Might Cat By-Pass Pipes Be Considered:
These pipes are not conventional replacement catalytic converters.

They are a track-focused performance modification intended to remove the catalytic-converter section completely.

They may be considered when:

• Building a closed-course track vehicle
• Maximum exhaust flow is desired
• A more aggressive exhaust note is wanted
• Increased turbo spool sound is desired
• Reduced exhaust-system weight is important
• The vehicle is being modified for competition use
• Other compatible performance upgrades are being installed

For a road-going vehicle, catalytic converters should not simply be removed as a replacement for failed components.

Why Replacement Matters:
A damaged or internally collapsed catalytic converter can restrict exhaust flow.

This can lead to:

• Reduced engine performance
• Poor throttle response
• Increased exhaust backpressure
• Excessive exhaust temperatures
• Engine-management faults
• Poor acceleration

On a road-going vehicle, the correct solution is normally to diagnose the cause and replace a failed catalytic converter with an appropriate emissions-compliant component.

For a dedicated track or off-road vehicle, Fabspeed Cat Bypass Pipes provide an alternative performance configuration that removes the catalysts and maximises exhaust flow.

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

FSPOR9972TCB

The product you are viewing cross references to these numbers

Fabspeed Sport Catalytic Converters.
The Fabspeed Sport Catalytic Converters are high-performance replacement catalytic converters developed for the Porsche 997.2 Turbo and Turbo S from 2010–2012.

Fits:

Designed to replace the restrictive factory catalytic-converter section, these Sport Cats use German HJS 200-cell catalytic converters combined with high-quality T304L stainless-steel pipework. The result is a freer-flowing exhaust path designed to improve power, throttle response and exhaust sound while retaining catalytic-converter functionality.

What This Product Does:

Catalytic converters form an important part of the vehicle's exhaust and emissions-control system.

Exhaust gases leaving the turbochargers pass through the catalytic converters before travelling through the remainder of the exhaust system. The catalyst promotes chemical reactions that convert harmful exhaust pollutants into less harmful gases before they leave the exhaust.

Performance catalytic converters perform the same fundamental role but use a less restrictive internal structure to improve exhaust flow.

The Fabspeed Sport Cats are designed to provide:

• Increased exhaust flow
• Reduced exhaust restriction
• Improved power
• Improved torque
• Sharper throttle response
• Increased performance potential
• More noticeable flat-six exhaust sound
• Reduced exhaust-system weight
• Continued catalytic exhaust-gas treatment

Symptoms Of Wear Or Failure:
Catalytic converters operate under extremely high temperatures and can deteriorate through age, mileage, contamination or engine-related faults.

Common symptoms can include:

• Check-engine warning light
• Catalyst-efficiency fault codes
• Reduced engine performance
• Poor throttle response
• Restricted exhaust flow
• Unusual rattling from underneath the vehicle
• Excessive exhaust heat
• Sulphur-like or unusual exhaust smell
• Poor acceleration
• Increased fuel consumption
• Failed emissions testing
• Visible damage to the catalytic converter
• Abnormal exhaust noise

A failed catalyst should be properly diagnosed before replacement.

Why Replacement Matters:
A damaged, contaminated or internally collapsed catalytic converter can restrict exhaust flow and interfere with engine performance.

Possible consequences include:

• Reduced power
• Poor acceleration
• Increased exhaust backpressure
• Excessive exhaust heat
• Engine-management warning lights
• Emissions faults
• Increased fuel consumption
• Further damage to exhaust components

Replacing a failed converter restores the intended exhaust path and catalytic function.

When upgrading to Fabspeed Sport Catalytic Converters, replacement can additionally provide reduced exhaust restriction, improved throttle response, increased performance potential and a sportier exhaust sound.

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

FSPOR9972TSC

The product you are viewing cross references to these numbers

Lambda Sensor Blanking Plug and Receiver Socket Set.
In case you need to relocate your existing lambda probe because it's not in the right location. Welding and cutting specialist required.


Fits:
Many Porsche vehicles. Universal kit.

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

100390100392

The product you are viewing cross references to these numbers