Are 12mm insulators compatible with the CPR6 manifold? Will bolts be ok?

Our alloytec manifold insulators will fit up to the CPR6 manifold, however there isn't enough room to run them together in a VZ Commodore, unless you were planning on modifying the bonnet. You would need to run different bolts then either of the ones supplied in our manifold insulator or CPR6 manifold kit.