Fabspeed Sport Catalytic Converters With GT2RS Style Outlets + Muffler Adapter. Porsche 992 Carrera (2021+)  ›  FSPOR992SCGT2WC

Fabspeed Sport Catalytic Converters With GT2RS Style Outlets + Muffler Adapter.

The Fabspeed Sport Catalytic Converters with GT2RS Style Outlets + Muffler Adapter are a high-performance exhaust upgrade for the Porsche 911 992 Carrera, designed to reduce exhaust restriction, improve turbo response and deliver a significantly more sporting exhaust character.

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The system replaces the restrictive factory catalytic converters with German HJS 200-CPSI high-flow catalytic converters and incorporates GT2RS-inspired direct exhaust outlets with muffler adapter. This configuration creates a freer-flowing path for exhaust gases after the turbochargers while retaining catalytic exhaust treatment.

Manufactured from CNC mandrel-bent 14–16 gauge T304L stainless steel, the system is engineered as a direct bolt-on installation with no cutting or welding required.

What This Product Does:

• Replaces the factory catalytic-converter assemblies.
• Replaces the restrictive original 800-cell catalysts with HJS 200-CPSI units.
• Reduces exhaust backpressure.
• Allows exhaust gases to leave the turbochargers more efficiently.
• Helps improve turbocharger response.
• Supports increased horsepower and torque.
• Creates a more aggressive sports-car exhaust note.
• Increases audible turbocharger sound.
• Uses GT2RS-inspired direct exhaust outlets.
• Retains catalytic exhaust treatment.
• Reduces exhaust-system weight.
• Provides a modular design that can be converted back to a muffled configuration.
• Retains compatibility with the factory muffler using optional adapter pipes.
• Can also be configured with Fabspeed's Valvetronic exhaust.
• Provides a bolt-on installation without cutting or welding.

Fabspeed's HJS catalysts use a much more open internal structure than the original 800-cell units, helping the turbocharged 992 engine move exhaust gases more efficiently.

Symptoms Of Wear Or Failure:
The Fabspeed system is primarily a performance upgrade, but replacement may also be appropriate when the original catalytic converters have deteriorated.

Possible symptoms of a failing or restricted catalyst include:

• Reduced engine power.
• Sluggish acceleration.
• Increased turbo lag.
• Poor throttle response.
• Engine feeling restricted at higher RPM.
• Difficulty producing normal power under heavy load.
• Check engine warning light.
• Catalyst-efficiency fault codes.
• Rattling or metallic noises from inside a catalytic converter.
• Excessive heat from the catalyst housing.
• Strong or unusual exhaust odours.
• Increased emissions.
• Failed emissions testing.
• Exhaust leaks around joints or flanges.
• Visible damage to the catalyst housing.
• Poor fuel economy.
• Abnormally high exhaust backpressure.

A partially blocked catalyst may be relatively difficult to notice during light driving but become increasingly restrictive as exhaust-gas volume rises under acceleration.

Why Replacement Matters:
Catalytic converters sit directly downstream of the turbochargers and therefore have a significant influence on exhaust flow.

If the internal substrate becomes damaged, contaminated, melted or partially blocked, exhaust gases cannot pass through efficiently.

This increases backpressure and can result in:

• Reduced engine performance.
• Slower turbo response.
• Increased exhaust temperatures.
• Poor high-RPM performance.
• Increased load on the turbocharged exhaust system.
• Engine-management faults.
• Reduced emissions-control effectiveness.

Replacing a damaged or restrictive catalyst restores a clear exhaust path and proper catalytic function.

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