Is the vibration a pulsing through the pedal? If so, your discs are warped. Depending on how bad they are they might be able to be skimmed to fix it, but if it's that bad you may need new ones.
Regarding the poor braking, can I assume you changed the brake fluid and bled the system, and checked the condition of the pads and discs?
Regarding the poor braking, can I assume you changed the brake fluid and bled the system, and checked the condition of the pads and discs?
yes pull all the pads out sand them down or get new ones. and bleed and flush the break lines.


