My rear bumper is cracked in the diffuser section in such a way that it doesn't seem repairable, or just isn't worth the trouble to do so. Since the actual Mugen rear bumper spoiler is pretty much impossible to find nowadays, has anyone had experience with the Duraflex version?

This picture seems fine, but photos online can be deceiving. Here's a pic of my rear currently.

Is the crack even worth the trouble? If it's worth getting the Duraflex, will my muffler even clear the hole?