I ran the dual compressor without the manifold kit for a few years on previous vehicles and it led to the first few feet of the air hose getting insanely hot. I installed the manifold after the original hose failed due to high heat.
Agree 100% on this!
I've had 2 failures where the hose out of the compressor got to hot and went kaboom after it melted away from the fitting.
I have added the manifold now and zero issues with it running non stop to fill (4) 42" tires.