Installing the Cargraphic Valve Controller (718 4.0L GT4 / GTS / Spyder)

The Porsche 718 GT4, GTS 4.0, and Spyder already deliver an incredible naturally aspirated flat-six experience—but the factory exhaust valve logic doesn’t always let the sound shine. In this video, we install and review the Car graphic Valve Control Unit for the 718 platform and show how it gives drivers full, manual control over their exhaust valves. We break down the key differences between the 2-mode and 3-mode Cargraphic valve controllers, explain how each version behaves in real-world driving, and walk through a complete installation on a 718 Spyder. Whether you want quiet starts, full-time valves open, or a smarter hybrid mode, this controller allows you to tailor the exhaust behavior to your driving style. This is a popular upgrade for owners who want maximum sound on demand—without permanently altering the factory exhaust system or triggering warning lights. #porsche718 #718gt4 #718spyder #cargraphics #porschemods #flat6motorsports #porscheperformance *Cargraphic Valve Control Unit (718 GT4)* https://flat6motorsports.com/products...