Wilwood has introduced the first series of rear disc brake conversion kits using their new Caliper. The calipers use hydraulic pressure for stopping and an internal mechanical lock for the parking brake. CPB kits provide matching style and performance for Wilwood鈥s already extensive line of front Big Brake upgrades. A choice of 11.00鈥 or 12.19鈥 diameter discs is available for most 4 lug Civics and Integ谤补鈥檚 from 1984 to 2010.