so far it seems really "dead" from inside closing a door or hearing the trunk close from inside the car... I have not driven it I still have the trans to put in and I will not start that until the interior is finished. I do intend to do the bottom side of the hood too then glue a new hood pad on over the top of the sound material.

http://www.peachparts.com/shopforum/members/makduff3-albums-seat-rehab-picture5673-cleaned-dynamat-sound-deadening-laid-down.html

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MAKDUFF3

1975 300D, Feuerrot and Parchment interior

1971 220D (RIP)