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StopTech Big Brake Kits are performance braking components offering balanced brake upgrades. Engineers analyze each vehicle's hydraulic system, master cylinder, weight transfer, and tire contact for optimal braking torque. Kits include 2, 4, or 6-piston StopTech calipers, patented Aerorotors (slotted or cross-drilled, bare cast iron or zinc-coated, with internal cooling vanes), Sport pads (aggressive street compound, moderate torque, low dust), model-specific stainless steel brake lines, and hardcoat anodized 6061-T6 billet aluminum brackets. Trophy and CBK kits feature lighter calipers and rotors with a dark grey hard-anodized finish. Trophy Sport kits are street-oriented with dust seals and anti-rattle hardware, while Trophy Race and CBK kits are track-only (no dust seals for weight reduction).