Got a 2017 XF 9000 completely stock. Bought a new Turbo Smart BOV from turbo dynamics and installed it. Looking for that awesome turbo flutter sound from the BOV. I can hear it a little now with the new BOV but still not very loud. Would this get louder if I reflashed to a 270 hp since it would build more boost then? Or louder with a cold air intake? Anyone got any ideas to make the BOV louder? Some turboed sleds on youtube you can really here the BOV not sure how they did that. More boost? Or plumed differently?