MSD - MSD 4 Channel Relay Module 165 in OD - Gun

165 in OD - Gun Drilled - Steel - Natural - Each

Pulse Width Module Controller - BoostWorx - Returnless - 10V-22V Range - 42-60 PSI - Pressure Sender / MAP Sensor / Wiring Harness Included - GT - Ford Mustang - Kit

25 in - Aluminum - Natural - Pair

Valve Cover - Tall - 3 in - Baffled - Coil Mounts - Aluminum - Natural - GM LS-Series - Pair

The foil number finish adds a premium touch that makes this model shine in any display

MSD - MSD 4 Channel Relay Module 165 in OD - GunMSD relay modules are designed to be easily installed in most automotive electrical systems where a high amperage relay is needed. These relay modules are perfect use with high amperage electric fuel pumps and high CFM electric cooling fans. Each relay comes with a 40amp fuse, however lower amp fuses can be installed if required. The relay housing comes with a labeled lid that snaps into place providing a clean installation, and protecting the main