Wilwood 150-20-7420K BP-20 Brake Pad Set #7420 for FSL, SL4 & SL6 Calipers Wilwood BP compound SmartPad numbered series represents the latest compounds developed through Wilwood research. Used by top racers in all auto racing genres, they also come standard in most kits for street use. Four different formulas offer increasingly aggressive friction and tolerance to high temperature, from spirited street use to extremely demanding racing competition. Multiple friction options allow users to optimize brake response to track conditions and weather. Compatible with all iron, steel, stainless, and titanium rotors within their intended temperature ranges. The Wilwood BP-20 brake pad compound is engineered for medium-to-high friction and fade resistance. The BP-20 is a true dual-sport performance compound providing clean and quiet driving on the street, with an expanded temperature and friction range for competition. This is the ideal pad compound for Wilwood bolt-on brake kits for autocross, track events, heavier weight high-speed drag cars, and trucks, SUVs and Jeeps. This pad compound is also great for intermediate-level dirt track use on limited tire, open wheel modifieds, and all types of hobby class racing. Wilwood BP-20 SmartPads provide smooth initial engagement with linear response through the entire temperature range. These brake pads are now available in the pad plates used with most Wilwood big brake kit calipers and other caliper brands using common pad plate shapes.