SST Exhaust Valve Controller BMW G42

Perfect for my g42 230i. Install is a breeze and works great. High quality build. Only minor quirk is the valve connector isn’t a 90°. Makes the wire hang down slighty. Not a big deal.

Better than the controller that comes with Valvetronic out of the box. You get 4 different modes to choose from including the 2 modes you get from Valvetronic which are 100% fully open and 100% fully closed. However with SST you get both of those modes plus the option to be %70 open all the time which only occurs on stock setup at full throttle. The last mode is stock controller which fluctuates based on throttle position to a max of %70. When paired with after market system like Valvetronic you get the most flexibility which is what I prefer.