yup. the headlights are held on by a few bolts, 1 of which is under the headlight behind the bumper. no other way to get to it. and FYI, you'll need about a 10" extension on the ratchet to reach that particular bolt. but like 808rsx_type-s said, it's really easy to take the bumper off. 2 screws (1 in each wheel well) and 8 or so clips underneath.
2006 RSX Type-s
*Pioneer AVH-P5700DVD Indash DVD * Remote Start * Painted Calipers * Injen CAI * 5000k HID Kit