http://videos.streetfire.net/video/7...B7ACEDE59B.htm
that is the link to a video i took after installing it. i didnt take any install pics cuz there are pictures in the installation instructions. yes you have to take the bumper off because thats the only way to unscrew the resonator box. i cant imagine trying to do it with the bumper still on. the cone goes directly to where the bumper it. but yeah i feel it pull a little harder than usual. i'm sure the effect would be more dramatic on a manual transmission....