Compare Quick view D2 Racing 6 Piston Rear Kit - Race 400mm Rotors Go fast and stop faster. D2 Racing Big Brake Kits provide you with serious braking power when you need it most. Our brake kits are offered for both the front and rear with rotor sizes ranging from 286mm-421mm, 4-8 piston aluminum caliper options, and... MSRP: Was: Price: Now: $3,600.00 Add to Cart