Bumper removal:
1.) Remove 4 screws (2 each side) on the bottom of the bumper, below where the cornering lights are. These hold the plastic undercarriage pieces to the bumper.
2.) Remove plastic "skid plate" by removing plastic "screw bolts" (like the ones that hold the grill on under the hood). I believe there's like 5 across the bottom.
3) There 2 screws on each side that hold the bumper in place (just below the headlights) Turn your wheel all the way to the left (for passenger side) Pull back the fenderwell to gain access behind the bumper. 1st screw/bolt is right there by the edge and the 2nd is furthur down about 3/4 to the front of the headlamp assembly.
3.) Under the hood, there's the plastic clips/bolts that hold the grill and bumper in place, you don't have to remove the grill from the bumper if you don't need to. Remove the plastic clips farthest to the outside. This should release the bumper from the car completely. (oh and first remove the plastic air duct thing that flows air to the intake)
Alternate
I just replaced my bulbs without removing the bumper. I found this way far easier, however it too, takes some time. You need to Jack the vehicle up and remove the wheels. Following this, remove the plastic wheel well. There are about 6 screws and about 6 rivots. After this is removed, you have access to all of the lights on either side of the vehicle. This was far easier than removing the whole bumper and only took me 30 minutes!!
The 2006 Nissan Maxima has 24 valves.
The 2006 Nissan Maxima has a V6 engine.
The 2006 Nissan Maxima is a gas-powered vehicle.
The 2006 Nissan Maxima has double overhead cam (DOHC).
The height of the 2006 Nissan Maxima is 4 ft. 10.3 in. (58.3 in.).
The 2006 Nissan Maxima has a drag coefficient of .30 Cd.
The 2006 Nissan Maxima's turning circle is 40 ft..
The 2006 Nissan Maxima is 16 ft. 1.5 in. (193.5 in.) long.
The 2006 Nissan Maxima has a 5-speed shiftable automatic.
The curb weight of the 2006 Nissan Maxima is 3501 lbs..
The 2006 Nissan Maxima has 43.6 in. of front leg room.
The 2006 Nissan Maxima has 36.5 in. of rear leg room.