I have a DC Performance roll bar and believe it is very different than the Autoform.
First the DC roll bar has a continuous upper horizontal bar connecting the top of the loop sections. Note that this bar is high enough to not block the view from the rear view mirror.
I asked DC to provide me with a written description of their roll bar for presentation to tech inspectors. The description reads in part as follows:
"The roll bar is bent from 1-3/4" dia. 0.120" wall thickness 1020 steel round tubing. Two lateral support tubes of the same material are tig welded to the bar at a 25 degree angle. The bar attaches to the upper frame section in 4 places by means of a male-female socket system and (4) 10mm retaining bolts. Additionally, the 2 outboard roll bar legs extend through the factory upper frame structure and attach to a 2"x2"x1/8" square tube mig welded between this upper frame rail and the bottom frame rail, on each side of the vehicle a 3" x 3/26" HR flat bar gusset supports this connection"
Their installation requires removal of the rear wheels and fender liners to weld the additional supports to the frame.
I hope this helps.