[Info@mad-us.com]

Originally Posted by Sierra055

I have Mike, that's a really great bonus of the SST, but just wonder at performance or reliability issues running at that if the car needed more outlet volume (space not noise).
I'm not unhappy at all with the volume or sound, but I find there's a narrow rev band from around 2500rpm that I'd wonder whether the resonated version would smooth out.

No issues running the valve in any mode. The valve will redirect a percentage of the flow from the straight pipe to the muffler depending on how much you close the valve. I believe the stock valve open setting is around 30%-40% so.