356mm 4-Piston Dual Caliper Brake Kit

The Ksport Dualcomp Big Brake Kit offers a comprehensive rear braking solution for enhanced performance and specialized control. This system is engineered with drifting and rally racing in mind, featuring a unique dual caliper setup where two pistons are dedicated to the primary foot brake and the other two independently handle the handbrake function. This allows for precise control and superior stopping power. The kit includes 356mm two-piece slotted rotors, which are designed to be significantly lighter than OEM equivalents. The Dualcomp calipers are 4-piston units, providing increased clamping force. For daily driving and occasional track use, the kit comes standard with NAOC Ceramic SC5 Street Pads, offering a balance of performance, reduced dust, and lower noise levels compared to pure race pads. The operating temperature range for these pads is between 194°F and 1022°F. Installation is facilitated by CNC-machined carbon steel caliper brackets that allow the larger Ksport calipers to bolt directly onto the OEM caliper bracket locations. The system also includes DOT-compliant stainless steel braided brake lines, which help eliminate line expansion under pressure, leading to a quicker pedal response and a firmer pedal feel than stock rubber lines. The handbrake component features a polished titanium cylinder and lever for both aesthetic appeal and functional control. Ksport Big Brake kits are built to order and typically require a production and delivery time of 4-6 weeks. Fitment is confirmed for the 2002-2008 BMW Z4 models. The company emphasizes confirming fitment before ordering, and if fitment is confirmed by their sales team and the product does not fit, they will facilitate a return with no restocking fees, provided the item is in like-new condition.