High Current Solid State Driver

Solid state relay driver that can be used for on / off or pulsed applications. This is our relay of choice for progressive nitrous and trans brake bump staging applications.  Includes a pre-terminated harness ready to install, as well as loose terminals and seals for custom wiring if desired.  NOTE: This driver requires a grounding or PWM negative trigger to activate. Applying 12v+ to the black/yellow trigger wire can damage the driver and / or the solenoid or component it's controlling. Equal to Holley part no. 554-111.