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Those flexible rubber pieces aren't going to protect the hose. You'll have to fab up something to do that, which is what I did after busting a radiator at an event. The lower radiator hoses on the 4S/Turbo/GT2 is really exposed.
partially, yeah, your bumper is the same as mine...not sure about the radiators, but they are most likely the same as mine. C2's radiator hoses to the radiator have regular hose clamps, C4S/Turbo/GT2 radiators do not, they are like this, and are held in place with a metal wire clip: