Fabspeed Porsche 991 GT3 Cup Sport Headers (2017 +) Interior 5P adapter (for use with

5P adapter (for use with OEM fan)

Designed with noticeable street performance in mind

which will be slightly louder than the Supercup with the valves open and just as civilized as our Maxflo system with the valves closed

These Gains are carried throughout the entire RPM range for power you can feel in the seat of your pants

Fabspeed Porsche 991 GT3 Cup Sport Headers (2017 +) Interior 5P adapter (for use withDirect replacement for the restrictive OEM headers, offering improved power and throttle response throughout the RPM range. FEATURES: Fits all Porsche 991 GT3 Cup vehicles 2017+ Includes German imported HJS 200 Cell Tri Metallic Sportcats Optimized for maximum performance with NO catalyst generated check engine light, guaranteed Saves 2 lbs 1 KG from the rear of the vehicle CNC mandrel bent 1pc primary header tubes High velocity Formula 1 motorsports