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- carbon grey 2005 SP23 sedan
*subscribes* thanks for the summer project idea 

Get some AWR 95 durometer front + rear motor mounts with side inserts.... It'll get rid of that rattle. (first)...but I'll do it to get rid of that rattle. .
700 what!? I purchased a 60sq.ft. roll of eDead and all the carpet matting for $100, and I only used 30sq.ft. of the eDead.
Bump.
Removing the carpet- is it fairly easy? Looks fairly easy. I'm strongly considering getting some eDead paint on stuff and painting the entire floor pan- especially the firewall and exhaust tunnel. Maybe some of that foam padding like you got too.