While we cannot guarantee compatibility, our customers have found them to work well together. We have never had a return due to non-compatibility. The following post by a customer is a useful reference:
https://www.greentractortalk.com/forums/r2-manufacturing/49114-edge-extenders-piranha-toothbar-installed.html
Also, see here for a useful video:
https://www.youtube.com/watch?v=UV2xsrgpx0c
PLEASE NOTE: At the end of the GTT thread, we caution that with the Piranha Bar, the Edge Tamer® is no longer flush with the edge of the bucket, and care should be taken to ensure the bolt is still tightened to a flat surface (i.e., the bottom of your bucket), and not to a beveled surface (i.e, the lip or a weld). Doing so could cause the Edge Tamers to slip off, particularly when carrying a load using the Edge Extenders. This is not typically a problem, but something to be mindful of.