Launch Control/Line Lock Kit.
Aeroflow's launch control kit (also known as Roll/Stage/Brake Control. Line Lock, Roll Stop and Anti-Roll). 12 volt, 2 port launch control is designed to be installed into the vehicles existing brake system and can be used on either the front or the rear brakes (not for split or diagonal brakes). In and Out ports are 1/8" NPT. Intended as brake locking devices for Drag or Off-Road use.
Note: System is only designed to be active for short periods of time (30 seconds or less). Should not be used as parking brake activation, when power is lost, solenoid will open.