Fabspeed HJS Sport Headers for Porsche 997.1 GT3 / GT3 RS (2006–2009)

The first-generation 997 GT3 Sport Headers combine stainless manifold tubing with German HJS sport catalysts. Investment-cast 3-into-1 collectors form the transition from the primary pipes, replacing the corresponding factory header/catalyst assemblies. Based in Fort Washington, Pennsylvania, Fabspeed Motorsport engineers exhaust, intake and ECU upgrades for sports cars and exotics, including Porsche. Dyno testing and road and track evaluation inform its development. Compatibility still depends on the engine, factory options and existing hardware or calibration.

Technical Details

• Fabspeed part number: FS.POR.997GT3.SHDR.
• Includes German-made HJS 200-cell tri-metallic catalytic converters.
• Mandrel-bent stainless steel tubing in 14–16 gauge material.
• Pyramidal 3-into-1 merge collectors.
• Recheck exhaust fasteners to Porsche specifications following the first heat cycle.
• These are the 997.1 headers; the later 997.2 application is listed separately.

Fitment & Compatibility

For Porsche 997 GT3 and GT3 RS, manufacturer-listed 2006–2009. Verify the generation and mating exhaust hardware. Fabspeed's catalyst notice limits the product to closed-track/off-road use and states it is not CARB or EPA certified; catalyst presence is not a universal street-approval claim.

PMB Performance has over 20 years of Porsche parts experience. Send your VIN and details of the existing setup if you need help matching this component.