did a quick cold start idle clip of my GTP. Its Pacesetters and a custom single 3inch from downpipe back.
http://s422.photobucket.com/albums/pp301/wessel_02/?action=view¤t=CIMG0076.flv
http://s422.photobucket.com/albums/pp301/wessel_02/?action=view¤t=CIMG0076.flv