Performance Catalytic Converter for Porsche 992 GT3 / GT3 RS

The HJS FS.POR.992GT3.MH.SC is a performance catalytic converter system designed for all worldwide Porsche 992 GT3 and GT3 RS models (2022-2025). This U.S. Patented RENNKRAFT modular system features a quick-release V-band connector, enabling owners to swap between the EMITEC HJS 200-cell Euro 6 homologated catalytic converters and optional QUICKTRACK link pipes for dedicated track use. Constructed from CNC mandrel-bent T304L stainless steel, the system includes lost wax precision investment cast inlet flanges and CAD-designed CNC flanges. Extensive dyno development has confirmed significant power gains, with the Sport Cats yielding +19 HP / +20 lb-ft of torque at the crank (16 whp / 20 lb-ft whp). The system also saves 6 lbs compared to the factory headers. It is important to note that this system deletes the GPF on EU cars and may cause a check engine light unless a simulator or tune is used. The optional cat bypass pipes are strictly for off-road track use only and are not intended for street usage, as they bypass emissions controls. Switching to cat-bypass for track events helps prevent catalytic converter degradation during competition.