zamboknee

An exhaust clamp on my wife's Highlander rusted off (see pic). I can't seem to find it's actual replacement so I'm wondering if I can just a similar steel clamp on there as long as it can take the high temperatures of the exhaust system. If not, can someone point me in the direction of the replacement part? I check a couple dealership/parts sites but didn't see anything similar. It's diameter is 2.5 inches. Thanks