r/hellcat

So I’ve had my Durango Hellcat for a few weeks now and as much as I like the car, the exhaust is really quite compared to my R/T and SRT. Looking for some options to make it sound meaner, especially on starting it and when gunning it, without being completely obnoxious, I’m in my 40’s for gods sake. I know people really like the sound of the supercharger, but I miss the rumble from the back. Finally, would any modifications to the exhaust void the warranty?