I’ve been using the Vibrant Performance V-Band Flange assemblies that have the “Male-Female” flange design and have had the best luck with them staying tight and not leaking if you end up going that direction.
vibrantperformance.com

V-Band Flange Assemblies
Vibrant Performance V-Band Flange Assemblies are the choice of industry professionals and offer an excellent Quick Release alternative to traditional flanged or slip fit tube connections. Our V-Band Assemblies provide a gasket free seal thanks to our signature “Male-Female” flange design and...
