Roll cage installation behind dash

That's a very nice and tight fitting cage. The only thing I would do differently is add a horizontal bar between the main hoop behind the seats as well as a diagonal that goes from near center/top of the main hoop to the lower passenger side main hoop. The horizontal will eliminate side crush and the diagonal will keep the cage from collapsing in the case of a side rollover.

Quite impressive though on how tightly it fits the window frame and a-pillars.