Not much to say about the rollbar other than the track-day roll bar uses 2 cap head bolts that come up from the top of the damper mount into the bottom of the rollbar and 2 hex head bolts that go through a plate on the top of rollbar down into the rear bulkhead. The last two bolts fasten the backstays to the chassis mounts in the boot.

The rollbar needs to be fitted before the rear dampers (otherwise you would need to remove the dampers to gain access to the mounting bolt).

I’d heard stories of builders struggling to align the rollbar with the mounting holes but ours went in really smoothly.