On-board air/airbags

[Zmann]

I vote for a separate bag system and a nice on board Air system

my bags have presets and maintain whatever I choose while letting me set either bag to a different psi for side to side and isolates for sway control

 

[TrailerHauler]

Check out hornblasters.com for onboard air parts and kits to. They have a lot of the stuff you would need as well.