I have the cooling ducts with 2" hose. I switching to 3" hose this spring. Have RacingBrake 2 piece rotors. Switching from 660 to the Castrol brake fluid. Have the Ti shims. Pads are XP10/8 combo. Z1 master cylinder brace.
The Ti shims helps keep the heat away from the piston and seals. They do nothing in keeping the pads and rotors cooler. That's for the ducts and hose job. If you are a heavy braker. You need everything you can get. I've had my 'bono's hot enough to leak fluid out of the bleeders.
Mike actually got his 'bono's so hot. They changed color.