[Twix]

The M2 suspension is the same so theoretically it should all bolt on. Keep in mind there will be different engineering parameters for the spring rates and shock valving. You're better off getting something designed strictly for the M2.

Brakes will bolt right on. If you want better braking, wider tires and lowering the weight will do more than switching to a different brand rotor. The MCCB will also bolt right on, you'd need to change your fluid and that should be it.

Nobody has said how much wider one can go with respect to tires, but 20mm shouldn't be a problem at all. That being said, you're best option is to either measure the clearance, or wait until somebody else does.