Thoughts on how to kill the drone

[turbopete]

I put on the Hooker cat back exhaust system and now have the drone. It is reasonable with the window down, but with the car closed up, the drone is there. Any thoughts on putting Dynamat on the floor under the back seat?
Any other suggestions?
Thanks.

 

[87GN_70GS]

The best way to get rid of the drone is to remove the mufflers that came with the kit and replace them with a straight-thru type like the Hooker Maximum-Flows.