Tri glide Air Ride

I am negotiations for a new Spartan 1032 FW by Primetime. This FW will push the limits of my 2013 GMC Denali with the Duramax engine. I was planning on adding airbags but my question is, with a Trail Air pin box added & a B&W Companion hitch, would I need to add airbags still with the Trail Air pin box?