I wouldn't chop then reweld onto a roll bar. You could try drill into the tube section and leave it as a tube or take a hammer to it.
Genuine GT4 is your only off-the-shelf option. Read the rules, read the specs. It's adjustable with the same diameter and initial length as the factory car. That's the whole point of GT4...
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Bilstein CS | Rays ZE40 | Solid/spherical front / rear.
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