Ash V3: 9.4"H X 8.0"W X 4.5"D Core (Specs off SpecialtyZ) Z1 B.A: 10.0"H 8.0"W 4.5"D Core (Specs Off Z1)
Im actually deployed right now and pics were taking by a buddy of mine so I can really neasure them but the cores are def close. The Ash seem to have smoother end tanks not as boxy as Z1 and the outlet and inlet look a lil better. Really hard to tell which would flow better. Hope someone makes charts soon.