Free Shipping on Tsudo 2015-2017 Ford Mustang GT 5.0L V8 3" Cat Back exhaust with drone eliminator
Scott Helme on Twitter: "The new Power Valve system has a DDE (Dynamic Drone Eliminator) built in to control the bass/hum/drone inside the car. Loud exahust but without the annoying drone in
Keep the Tone, KILL the Drone! | Cummins Diesel Forum