This upgrade is designed for those who wish to upgrade the braking performance of their DSM. The upgrade uses the much larger 330mm (13") Ford Mustang Cobra rotors and the Stealth/3000GT VR4 4-piston calipers. (The stock DSM rotors are either 276mm (dual piston) or 256mm (single piston)). This upgrade is for the front brakes only. Complete details can be found in the various product descriptions below.