Originally Posted by JARblue

You mentioned rattles, so it makes sense that you would be looking at some butyl to lay down. I just wanted to point out there is no need to go overboard with it. I did my entire hatch with the stuff, which was just totally unnecessary and did not help as much as I had hoped. You should never need to use 50+ lbs of the stuff like Clam mentions - you'll get much lower decibel readings with strategically placed butyl and full coverage in CCF. I learned the hard way.

I eventually decided not to go forward with anything else cause racecar. I'll be removing the stuff in the hatch at some point in the future - not looking forward to that.