Took a break from the COBRA & did something I said I absolutely would not do. Mod the Z4. Was checking for leaks etc when this horror hit my eye. A reasonably expensive car with portable baby highchair support braces. They had to go. Got two CNC cut solid bars from BMS the guys who do the JB4 tuner kits for BMW & other makes with turbos.
Portable Baby Highchair Braces. A hollow tube with squished ends.
BMS CNC solid bar braces