Fabspeed Porsche 981 Cayman GT4 / Boxster Spyder RENNKRAFT® Modular Headers with HJS Catalytic Converters (2015-2016) Fabspeed Chevrolet Corvette C8 Z06 Titanium Valvetronic Cat-Back Exhaust System (2023+) smiles per gallon gained is

smiles per gallon gained is entirely our fault

Ultra-lightweight design to reduce vehicle weight as much as possible

BMC performance air filter and optional XperTune Performance Software with Handheld Tuner

there is no drone what-so-ever with maximum clean and green emissions power

Catalysts Manifolds

Fabspeed Porsche 981 Cayman GT4 / Boxster Spyder RENNKRAFT® Modular Headers with HJS Catalytic Converters (2015-2016) Fabspeed Chevrolet Corvette C8 Z06 Titanium Valvetronic Cat-Back Exhaust System (2023+) smiles per gallon gained isFabspeed Porsche 981 Cayman GT4 Boxster Spyder RENNKRAFT Modular Headers with HJS Catalytic Converters (2015 2016). These 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