Fabspeed Rennkraft Modular Stainless Steel Headers for Porsche 992 GT3 & GT3 RS (2022–Present)

Description

The Fabspeed RENNKRAFT® Modular Street & Racing Headers are an elite performance exhaust upgrade for the Porsche 992 GT3 and GT3 RS (2022 +) built to deliver real horsepower and torque gains, improved engine sound, and dual-purpose functionality for both street and track use. These headers utilize Fabspeed’s U.S. patented RENNKRAFT® modular design, which allows you to quickly switch between high-flow HJS catalytic converters for emissions-friendly road use and cat-bypass link pipes for uncompromised track-only performance. Precision engineered using 3D laser scans and developed with German HJS technology, this header system elevates the 4.0 L flat-six’s breathing efficiency while enhancing the GT3’s distinctive exhaust note.

Fitment Notes

• Designed for Porsche 911 992 GT3 and GT3 RS models from 2022 onward.

• Direct bolt-on fitment engineered from OEM 3D scans — no cutting or welding required.

• Street configuration uses high-flow HJS catalytic converters to avoid CEL and support emissions compliance (outside EU/GPF-monitored cars without a simulator or tune).

• Track configuration with included cat-bypass pipes is intended track-only use (may trigger codes and is not emissions legal).

• May delete the GPF on EU/GPF-monitored vehicles unless paired with an appropriate simulator or tune.

Included

• Modular RENNKRAFT® long tube headers tailored for the 992 GT3/GT3 RS.

• HJS German-imported 200-cell catalytic converters (street use).

• Cat-bypass QUICKTRACK™ link pipes for track configuration.

• Quick-release V-band hardware for modular switching.

• Mounting hardware and installation instructions for bolt-on setup.

Product Specs

• Material: CNC-mandrel-bent T304L stainless steel for durability and heat resistance.

• Configuration: Modular long tube header system with quick-swap HJS cats and cat-bypass pipes.

• Gains (sport cats): Typically ~+19 HP / +20 lb-ft torque at the crank and ~16 whp / ~20 ft-lb at the wheels over stock.

• Gains (cat-bypass): Up to ~+23 HP / +26 lb-ft torque at the crank and ~19 whp / ~26 ft-lb at the wheels.

• Weight Savings: Approximately 6 lbs (2.7 kg) lighter than factory headers.

• Sound Character: More aggressive, race-bred tone with robust burbles and deceleration sound, especially with cat bypass.

• Warranty: Backed by Fabspeed’s Lifetime Warranty (terms vary by reseller).

Product Features

• US-Patented RENNKRAFT® modular design lets you quickly swap between emissions-compliant and race-only configurations.

• High-flow HJS catalytic converters deliver strong power gains with minimal check-engine light risk when used properly.

• Cat-bypass link pipes allow uncompromised flow and sound for track sessions.

• Long tube header geometry enhances exhaust scavenging and mid-range torque.

• Precision engineering with F1-style merge collectors improves flow dynamics and sound quality.

• CNC mandrel construction with premium stainless steel ensures strength, heat tolerance, and durability

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