I just bought a Fidanza aluminum flywheel for my 99 GSX. I have heard nothing but good thing about these flywheels. I am not all that worried about the loss of my ability to lug the engine at low speeds (Parking lots etc.) I do have a question however, and I can't seem to find it anywhere on the internet. OK here goes. I understand that the flywheels can NOT be re-ground, so when I need to change my clutch again (Hopefully not for quite some time) I will need to have the steel friction insert replaced. My question is, where can I get this done? Do I need to send it back to Fidanza for this service? Has anyone had this done? Do you know how much it will cost? 1 last thing, does anyone know eactly how much it weighs? I know the AWD flywheels are smaller the the FWD flywheels, but exactly how much rotating mass will I be removing?Thanks for everyones time.