Saab 9-3 Aero TTiD Blow-Off

Saab 9-3 Aero TTiD Blow-Off, for Diesel Saab fans... Can i fit a blow off valve to this TTiD model? It has no butterfly throttle as such (well it has a inlet restriction flap for the EGR (to generate some lower inlet pressure to induce exhaust to be drawn in from the egr valve) and when shutting down to give a cleaner and quicker engine stop), so no way of building and thus dumping pressure. es you can fit a dump valve but it would have to be electrically actuated. There are many kits for diesels around if you search online.