Is this a shoulder belt or lap belt? The picture makes it difficult to tell. If it's a lap belt, the black seat belt loop with the white plastic bushing mounts to the inside edge of the side tunnel with a large shoulder bolt.
They are the right ones if the length is correct. They must have installed a generic set of aftermarket seatbelts.
Vandor is right. Those brackets would be attached to the B-pillar if it was in another car. I'd just leave them as long as they don't get in your way. You could carefully make a slot to slide them off with a dremel, but one nick in the belt would mean replacing it again.
Jim, If I were your mother, I'd give you a few swipes with the spoon.....
As a POC fire fighter for 19 years, plenty of MVA's were from the other guy crossing the center line.
I know our Fiats don't offer much if any protection but the newer cars do when one is strapped in
Chris
80 FI spider
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box