Fabspeed Porsche 981 Cayman GT4 / Boxster Spyder RENNKRAFT® Modular Headers with HJS Catalytic Converters (2015-2016) Select:Choose your Configuration=Cat Bypass Pipes Boxster Maxflo STREET exhaust system

Boxster Maxflo STREET exhaust system includes HJS sport catalytic converters to remain emission compliant with no CEL's

Porsche 992 Turbo HJS Sport Catalytic Converters

Fits all Porsche 997 GT3 / GT3 RS vehicles 2007-2008 worldwide

Some vehicles sport two catalysts due to their dual pipe assembly

For step-by-step BMW or Porsche Cayman exhaust system installation assistance

Fabspeed Porsche 981 Cayman GT4 / Boxster Spyder RENNKRAFT® Modular Headers with HJS Catalytic Converters (2015-2016) Select:Choose your Configuration=Cat Bypass Pipes Boxster Maxflo STREET exhaust systemThese modular headers are the perfect solution for any Cayman or Boxster. Our patented RENNKRAFT modular design features a quick release V band connector that allows the owner to easily swap between our German made HJS 200 cell cats and a cat bypass straight pipes for track use. RENNKRAFT, translated from German is race power. These unique headers offer true street and racetrack functionality in an innovative precision engineered package. SOUND: