Can anyone say for sure if the 08+ FL Brembo calipers will bolt up on an 01 Ultra. I know the rotors would have to be changed as well.

Re'

Yes they will fit from 2000 on. As you know you will need the 11.8 rotors. You will need to completely flush the Dot 5 brake fluid out as the brembo's use Dot 4. Good time to add SS brake lines and rebuild your master to be sure it is flushed out. You will not be disappointed with this upgrade.
Did mine in the winter of 07 and it's one of the best upgrades I have done.

Thanks for the response. Went to the dealer today and was told the same thing by the service tech. Did you use the Brembo rear caliper too??

Re'

Yes I did install the rear. This is more involved as the rear mount needs to be opened up from the 25mm to 1" for your axle, and a right side spacer needs to be made as mine took a .71" to fit correctly. I also added the brembo master cylinder and that required cutting off the old mount and drilling new holes and adding capture nuts.
I have posted this with pictures after I did the work, but not sure if it's still out there since the forum update.
If you would like a copy PM me with your email and I will send you it.

Note: the Brembo frount calibers use the same size mounting bolts for the top and bottom so you will need to purchase two more of your short ones.

Thanks. I don't think I will bother with the rear right now as that more involved than I want to get (maybe a winter project). Did you use the Brembo front brake master cylinder?

Re'

I did and it fits right in where your current master is, but the banjo bolt is differant as well as the lever and lever pin. The take off master that I purchased off ebay came with the lever so I only had to pick up the pin and banjo bolt from a dealer. At the time I then added the SS lines so I did not need to purge Dot 5 out of anything.