OEM Brake Proportioning Valve
3000GT & Stealth - ABS and Non-ABS
This is the OEM Mitsubishi brake proportioning valve that is mounted on the lower-middle part of the firewall. While it is not common for them to need replacing, they do occasionally fail.
Above = ABS | Below = Non-ABS
You choose depending on whether the vehicle is equipped with ABS anti-lock braking system.
There is a single bolt that holds it to the firewall - this is available separately if you need it.