4.0   Brakes  A/B/C/D/S

• General
  • Working condition at all 4 wheels
  • No component other than  the master cylinders and brake booster may increase brake line pressure.
  • Rear disc brakes mandatory A/B/C/D  (S is exempt)
     
• Caliper
  • Stock Single Piston Steel Calipers only
  • Howe GM aftermarket caliper (Part# HOW337 or HOW33658) is allowed (must have Howe logo).
  •  Capitol Motorsports alternative caliper (Part# LHC258 or LHC21516) is allowed.
  • Steel caliper slider pins only. Caliper brackets must be steel and may be welded or bolted to the housing tubes or tube flanges.
• Rotors
  • Steel  Only
  • Must maintain thickness stamped on rotor
  • No cross drilling, gas slotting, or machining to enhance rotor performance or cooling
     
• Proportioning valves
  • Maximum 1 – for front and rear bias only
     
• Brake Ducting
  • Must be below bumper height