SP Performance Semi-Metallic Brake Pads. These semi metallic high performance brake pads are formulated for aggressive street driving, smooth quiet stopping, and will also keep your wheels clean. Street Plus brake pads have proven themselves in all types of weather conditions to stop better and last longer than traditional brake pads. This is a great every day pad with enough stopping power for some aggressive driving without having to swap pads out and still keep you wheels clean! SP Performance products are Made in the U.S.A.
These pads have a low resin formula which has a fast break in period. It is manufactured with a positive mold process which uses virgin friction materials. (no regrind material). It is put into a press at 500 tons while it is heated creating a very dense formula without any air gaps. The more dense the friction, the longer it lasts. This positive mold friction requires 70% less resin. The low resin results in superior brake performance without making a hard and brittle pad which can cause noise and brake glazing. ("FF or "GG" co-efficient.) Not only will you get longer pad life, but also longer rotor life. Tradition methods of pad manufacturers use a process called flash molding. This low pressure molding requires a high content of resin to make the material flow. These are often high in code, but lower density pads will result in poor performance.
With extensive testing, we have found that the SP Performance street pads work well in both cold and hot conditions. Other inferior brands may have a higher co-efficient such as "FF" and "GG" but will work only when the pad is very hot. When the pad is cold the result is scraping of the material which greatly reduces the life of the rotor and causes poor stopping