991.2 Porsche 911 and 982 Boxster GTS and Cayman Spyder, GT4, GTS 4.0 Valve Controller GranTurismo Light weight design saves 2

Light weight design saves 2 lbs / 0

We don't think so

fantastically daily-drivable sound and power from Fabspeed's Maxflo Performance Exhaust System

OEM Style 'Quick Connect' Inlet/Outlet Connections

991.2 Porsche 911 and 982 Boxster GTS and Cayman Spyder, GT4, GTS 4.0 Valve Controller GranTurismo Light weight design saves 2From the factory, your Porsche's valve system has a limitation, but with the KIES Valve Controller, you can take control! At a standstill and at lower RPMs, your car is programmed to partially close the exhaust valves, even when you have them OPEN. With the KIES Valve Controller, you can take control to fully open the valves to enhance the flow and the sound from your exhaust. In many cases, we've found that customers with PSE (Porsche Sport Exhausts)