Choosing the correct brake pad starts with an honest assessment of the driver's typical driving conditions. For example, if the vehicle is driven 80 percent in highway commuting conditions, 20 percent on canyon roads, and zero percent on the track, then a PosiQuiet "street" pad will likely offer the best combination of stopping performance, low dust and low noise. If the vehicle is frequently used for track days but also as a daily driver, it might be better served by the StopTech 309 series Street Performance pad - provided that an even transfer layer of pad material on the rotor is maintained by periodically re-bedding in the pads. For track days, StopTech bolt-in caliper bridges make swapping over to dedicated track/race pads for the day of the event even easier. High performance doesn't necessarily just refer to high speeds either. In the automotive world, high thermal loads come in many shapes and sizes.