Eventuri Black Carbon intake - Porsche 991 TurboEventuri Black Carbon Intake System Porsche 991 Turbo Turbo S (EVE P991T INT) Enhance your Porsche 991 Turbo or Turbo S's performance and engine bay aesthetics with the Eventuri Carbon Fibre Intake System. Meticulously engineered for the 991. 1 and 991. 2 models, this intake system delivers substantial gains in horsepower and torque while reducing intake temperatures and improving throttle response. Unlike conventional intake systems, Eventuri's