DualComp 330mm Big Brake Kit Rear

The Ksport BKFD050-434SO DualComp Big Brake Kit is a complete rear brake upgrade designed for high-performance driving applications such as drifting and rally racing. This kit features an innovative dual-function 4-piston caliper. Two pistons are dedicated to the foot brake circuit, while the remaining two operate the handbrake circuit, with each system running fully independent of the other on its own hydraulic circuit. This design ensures optimal performance and control for both braking functions. The system includes two-piece floating rotors measuring 330mm (13 inches) in diameter with a slotted rotor face. The lightweight rotor center sections are constructed from 6061-T6 aircraft-grade aluminum, which significantly reduces rotational mass compared to standard OEM one-piece rotors. The two-piece rotor design allows the outer rotor ring to expand and contract independently from the aluminum center section, dramatically reducing the risk of heat-induced warping. Furthermore, the aluminum center section acts as an efficient heat sink, channeling thermal energy away from the braking surface. Key features include the innovative 4-piston dual-function caliper with independent hydraulic circuits for foot brake and handbrake operation, 13-inch (330mm) two-piece floating slotted brake rotors, and 6061-T6 aircraft-grade aluminum rotor center sections for reduced rotational mass. The two-piece rotor design also resists warping under high-heat racing conditions. The calipers are aluminum, come in orange, and have 4 pistons. The rotors are vented and slotted, with a diameter of 13 inches (330mm) and a width of 32mm. Anti-rattle springs are also included. Note: This product is not subject to CARB regulations.