And no I do not mean waste gate. I'm just curious to see if it's possible(I know not practical). On gas engines they work because of the throttle plate and vaccine changes, we do not have any of that, but there is a kit to hook up a blow off valve to diesels that uses a pressure sensor and micro switch that monitors tps voltage I believe, so theoretically someone with a turbo'd idi with an e40d could use one, but that doesn't help me with a 4 speed (not to mention that kit costs 650 dollars). Just curious if I could rig one up cheaply. And yes the only reason I want one is because of the cool sound haha.