Porsche 718 GT4 / Spyder / GTS 4.0L SOUL Competition Headers CP5555 D54 which targets and omits drone-prone

which targets and omits drone-prone frequencies while defeating the dreaded in-cabin tone change when switching between V4 and V8 modes

Made from high quality 2x2 carbon twill that will match carbon fiber accessories in your engine bay or the exterior of your vehicle

DEVELOPMENT & SOUND:  The factory header design is a very simple

for any reason

Porsche 718 GT4 / Spyder / GTS 4.0L SOUL Competition Headers CP5555 D54 which targets and omits drone-proneDEVELOPMENT AND TESTING: The factory headers were designed to be easy and cheap to manufacture while also conforming to the performance killing emissions standards of the market. The stock headers use cheap pressed flanges, squashed primary tubing, generic collectors and massive catalytic converters all robbing your high performance Porsche of the sound and performance it deserves. By smoothing the interface between the flange primary tubes, using