There is a long thread Slick did earlier this year, I won't derail this thread but that's the concept. Not allowing the system to reach a 2 bar venting pressure means that you won't ever put 2 bars of stress on plastic cooling components (30 psi)

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards