The Traxda lift kit has camber adjustments, but isn't a true 2inch lift for the rear since it was designed for the Honda Ridgeline which has a different spring in the back that gives the Ridgeline a higher factory rake to account for a heavy payload in the bed of the truck. Aerogenic is a true 2 inch lift all around for the Passport, but does not have a camber adjustment. Some people prefer the camber adjustment ability from the Traxda kit since the newer Honda suspension uses a different strut design from what is standard for most other vehicles. It's hard to say whether you truly need it or not, but it has been found that each vehicle can vary widely in terms of it's factory camber and toe depending on the workers in the factory that day...