I took (cut) the foam out, then applied the dampener, then re-applied the foam. As an FYI, it made such a great improvement. I recommend it to everyone. It's time consuming... but worth every minute.
~Eric
2000 CSVT Silver Frost: #942 of 2150
HID Projectors and Fog Light Mod, Optomized TB, MSDS headers
2003 Silverstone Z