I'm going to make it out of mild steel once i know the guage & diameter of it & because it's made specifically for my car i don't need the adjuster link in middle like sparco ones have.
I have priced up some mild steel tube and for 2000mm x 43mm diam x4mm thickness is just £21 the rest is just my time so i think a significant saving and a brace that will do as good a job as any other.
Once made and it fits i will prime and spray same colour as car (porto) & maybe etch something on top to personalise it, Depends how creative i feel

Ill post pics once done so watch this space.
As for people wondering if they actually make a difference...
I have had them on both my coupes & noticed a real difference on handling with them on.. its not just engine bling.