vehicle backup sensor angled adapter

I got the aftermarket backup sensor. But the bumper is pointing down. as a result the sensor alarm is always beeping. So I made this adapter to point the sensor up. V1 is for new installation. Tap a 32mm hole.V2 is for the existing installation, requiring glue.
The sensor diameter is 22.5mm, and you can get a step drill to open up the existing hole to 32mm.
The cut in the adapter is for the little flexibility to insert into the hole. The existing installation can go over the wire easily.
My very first design.