The Forza Y-Cable is used to connect the controller module to the vehicle's vacuum solenoid valve. The 4-pin connects connects to the controller module and the two 2-pin connectors (one male and one female) connect to the vehicle's vacuum solenoid valve.
The following illustrates how the Y-Cable is used with the Forza controller.

All Forza controller kits come with one or two Y-cables (depending on the controller module).
Should the need arise to have a replacement Y-cable, go to the Catalog page.
Design by Forza Componenti