Is it possible to do a Gundo hack of Fister mod that is remote-controllable (like the PSE)?

 

I am in the process of doing the Gundo hack. Based on what I know, there would be no way to "turn it on or off". It is on all the time. Both the Gundo and Fister modifications simply add a pipe to allow a partial bypass of the muffler...therefore louder. The Porsche PSE sytem has valves that can be closed to stop the bypass therefore quieting the exhaust note. If you want to control the sound, I am afraid you will need the factory PSE exhaust. Sorry I do not have better news for you.

 

No. The mod is welded in place.