rmblaster

I have a RVI braking system on order and my question is does the cmax have active or vacuum brakes I tried to depete the vacuum in the system but the pedal never got hard no matter how many times I pressed the pedal like it does in my F150 I did talk to Dan the inventor of RVI brake and he said it should be used with the active setting so anybody using a RVI with their Cmax have any info to share​