Brushed stainless steel. Mount an MSD, Max Volt or Crane spark box to the top. Has locations for your 50 amp breaker, starter solenoid, and factory Mercury cannon plug. Factory Mercury Cannon Plug can exit from the side or back of the bracket. Optional brackets to mount an MSD#120-8207 coil. Supplied with 3/8" mounting hardware for aftermarket or LTE Model BBC Engines Note: May Interfere with Factory Y-Pipe.