Hi, is anybody using the performance MRP rear caliper brackets for the FC? I have them on my car currently, and I'm not sure I should keep running the setup, as I dont like that my rear hubs are ground down around the studs a little bit. Any input is appreciated, thanks!

 

Looking at the instructions, the amount needing to be removed to use it is minimal. Hardly any material needs to come off at all. I would say it's more of slight clearancing than anything. What is your concern?

 

As silly as it sounds, my concern is losing a wheel or something like that. I just wanted some opinions on if its a bad thing to keep running or not.

 

If the MRP rear caliper brackets required grinding the rear hubs around the studs, that’s not ideal. Many people run them, but the brackets should seat flat without hub or stud modification. Grinding there can affect clamping, stud strength, and long-term safety. If material was removed from the hub or studs, it’s worth reconsidering the setup or at least inspecting/replacing studs and verifying the bracket sits perfectly flush.

 

Read the instructions and see what "grinding" is defined as