Those baffles are actually for the screamin egale slip-ons. Not the stock Fat Bob mufflers.
I bought them a few months ago but never put them in. I painted them black with high heat paint as the rim edge of the exhaust will show and the S.E. has black tips. I just have been to busy to take the mufflers off the bike and deal with taking out the stock baffles. I hear it is a pain.