Supercomp Rear Big Brake Kit with 356mm Slotted Rotors

The Ksport Supercomp Rear Big Brake Kit is engineered to provide the ultimate in stopping power for your BMW F31 3-Series M-Sport Wagon. This extreme brake upgrade integrates advanced brake technology to significantly reduce brake fade and continuously cool the brake pad surface during use. At the core of this system is the extreme lightweight SuperComp caliper, forged from aircraft-quality billet aluminum. It features a differential bore configuration with larger pistons compared to Ksport's ProComp calipers, significantly improving pad wear and caliper rigidity over the OEM design. The caliper includes aluminum pistons, high-temperature seals, titanium brake pad retainer clips, and stainless-steel brake pad wear plates. The accompanying 2-piece floating disc assembly reduces both rotating and unsprung weight while mitigating thermal stresses that can warp the disc. The unique slotted rotor design actively reduces braking noise and expels gas and pad debris more efficiently than conventional designs. This kit comes standard with Ksport SC5 Street Pads, designed for optimal performance under street and occasional track conditions. Optional RC5 Race Pads, made from carbon metallic, are available for extreme track use. This big brake kit is made to order and non-refundable. It includes D.O.T. compliant stainless-steel braided brake lines that improve pedal feel and response. Carbon steel caliper brackets, CNC machined specifically for your vehicle, ensure a direct bolt-on fitment to the OEM caliper location.