Not to be smart but you can find out in 5 seconds. Get down on your knees, look under the vehicle and count them.
The V-6 has two cats.
The 2006 Nissan Xterra has 24 valves.
The 2006 Nissan Xterra is a gas-powered vehicle.
The 2006 Nissan Xterra has a 6-speed manual.
The maximum payload of the 2006 Nissan Xterra is 1138 lbs..
The 2006 Nissan Xterra has a 30.5 degrees angle of approach.
The height of the 2006 Nissan Xterra is 6 ft. 2.9 in. (74.9 in.).
The 2006 Nissan Xterra has double overhead cam (DOHC).
The 2006 Nissan Xterra has a 27.5 degrees angle of departure.
The 2006 Nissan Xterra's turning circle is 37.7 ft..
The curb weight of the 2006 Nissan Xterra is 4150 lbs..
The 2006 Nissan Xterra is 14 ft. 10.7 in. (178.7 in.) long.