DS3.12 are a high-output, heavy duty circuit compound. It has been developed in testing in top-level GT racing and is suitable for larger and heavier non-formula cars on the track. It is superior to other Ferodo compounds both in friction coefficient and maintenance of its performance at very high temperatures. It has a predictable and constant friction output throughout its operating range, regardless of brake pressure. Its torque profile in the early stages of the brake event means it manages the introduction of ABS in a smooth manner.