Ksport BKVW040-435SO DualComp Rear Big Brake Kit 4-Piston 13 in. Slotted Rotors

The Ksport DualComp Big Brake Kit is a high-performance, rear brake upgrade engineered specifically for drifting and rally racing applications. This innovative system features a single 4-piston caliper that serves a dual purpose — 2 pistons are dedicated to the foot brake circuit and 2 pistons are dedicated to the handbrake circuit, each operating independently on its own hydraulic system.

The 13-inch (330mm) slotted floating brake disc provides aggressive heat dissipation and enhanced bite, making it an ideal choice for high-demand track and motorsport use. This kit is Formula Drift legal and is designed for 2WD vehicles.

Two-Piece Floating Rotor Technology:

• Lightweight two-piece rotor construction weighs up to 50% less than comparable OEM one-piece rotors
• 6061-T6 aircraft-grade aluminum center bell reduces rotational mass for faster, more responsive braking
• Floating outer ring expands and contracts independently from the center section, greatly reducing the risk of heat-induced rotor warp
• Aluminum center sections act as heat sinks, channeling thermal energy away from the braking surface more efficiently than steel

DualComp Caliper & Handbrake System:

• Single 4-piston caliper splits function between foot brake (2 pots) and handbrake (2 pots), each on an independent hydraulic circuit
• Includes a polished titanium handbrake cylinder and lever for improved feel and precise driving control
• CNC-machined carbon steel caliper brackets allow the oversized calipers to bolt directly to the OEM caliper bracket location
• No vehicle modifications required in most applications

Kit Includes:

• 4-Piston DualComp Calipers
• 13 in. (330mm) Slotted Floating Brake Disc
• Brake Pads
• Polished Titanium Handbrake Cylinder and Lever
• CNC-Machined Carbon Steel Caliper Brackets
• D.O.T.-compliant stainless-steel braided brake lines
• All required installation hardware

Key Specifications:

• Rotor Diameter: 330mm (13 in.)
• Rotor Style: Slotted
• Caliper Type: 4-Piston DualComp
• Position: Rear
• Compatible with 17-inch wheels and above
• For 2WD vehicles only

The Ksport DualComp system is a complete bolt-on kit, designed to deliver race-proven stopping power and handbrake performance without requiring permanent vehicle modifications. Note: OEM handbrake will not function after installation of this kit.