<< Yeah I know, that's the passenger cage in general, but I was thinking like those aftermarket/racing ones. >>
I'm pretty sure they are strictly for looks, they like bolt onto your floor panels and would only inflict more damage than they could prevent, it would basically be just more crap flying around in your car in the case of an accident, rather than something that makes your car safer.. if you want a rollcage, spend alot and get a real one.. but since you're looking at one of those aftermarket add-ins you probably won't want to spend what a real roll cage is worth, nor is it probably practical for you.. - I would not put one of these in my car, Ever.